diff --git a/install/debian/7/templates/web/apache2/basedir.stpl b/install/debian/7/templates/web/apache2/basedir.stpl
index 8ee55ea3e..dda3aa760 100644
--- a/install/debian/7/templates/web/apache2/basedir.stpl
+++ b/install/debian/7/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/debian/7/templates/web/apache2/basedir.tpl b/install/debian/7/templates/web/apache2/basedir.tpl
index aab9e0278..9449bc447 100644
--- a/install/debian/7/templates/web/apache2/basedir.tpl
+++ b/install/debian/7/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/debian/7/templates/web/apache2/hosting.stpl b/install/debian/7/templates/web/apache2/hosting.stpl
index a3928bf2e..627325e06 100644
--- a/install/debian/7/templates/web/apache2/hosting.stpl
+++ b/install/debian/7/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/debian/7/templates/web/apache2/hosting.tpl b/install/debian/7/templates/web/apache2/hosting.tpl
index 1d07b4ffd..0bdd6ea68 100644
--- a/install/debian/7/templates/web/apache2/hosting.tpl
+++ b/install/debian/7/templates/web/apache2/hosting.tpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/debian/8/templates/web/apache2/basedir.stpl b/install/debian/8/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/debian/8/templates/web/apache2/basedir.stpl
+++ b/install/debian/8/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/debian/8/templates/web/apache2/basedir.tpl b/install/debian/8/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/debian/8/templates/web/apache2/basedir.tpl
+++ b/install/debian/8/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/debian/8/templates/web/apache2/hosting.stpl b/install/debian/8/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/debian/8/templates/web/apache2/hosting.stpl
+++ b/install/debian/8/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/debian/8/templates/web/apache2/hosting.tpl b/install/debian/8/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/debian/8/templates/web/apache2/hosting.tpl
+++ b/install/debian/8/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/5/templates/web/httpd/basedir.stpl b/install/rhel/5/templates/web/httpd/basedir.stpl
index a16f75b00..4ced9f381 100644
--- a/install/rhel/5/templates/web/httpd/basedir.stpl
+++ b/install/rhel/5/templates/web/httpd/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/5/templates/web/httpd/basedir.tpl b/install/rhel/5/templates/web/httpd/basedir.tpl
index f611f3bcd..566c9884c 100644
--- a/install/rhel/5/templates/web/httpd/basedir.tpl
+++ b/install/rhel/5/templates/web/httpd/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/5/templates/web/httpd/hosting.stpl b/install/rhel/5/templates/web/httpd/hosting.stpl
index 4e2b26a47..f94ba1867 100644
--- a/install/rhel/5/templates/web/httpd/hosting.stpl
+++ b/install/rhel/5/templates/web/httpd/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/5/templates/web/httpd/hosting.tpl b/install/rhel/5/templates/web/httpd/hosting.tpl
index 77d0d2ca0..1d3dd354b 100644
--- a/install/rhel/5/templates/web/httpd/hosting.tpl
+++ b/install/rhel/5/templates/web/httpd/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/6/templates/web/httpd/basedir.stpl b/install/rhel/6/templates/web/httpd/basedir.stpl
index a16f75b00..4ced9f381 100644
--- a/install/rhel/6/templates/web/httpd/basedir.stpl
+++ b/install/rhel/6/templates/web/httpd/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/6/templates/web/httpd/basedir.tpl b/install/rhel/6/templates/web/httpd/basedir.tpl
index f611f3bcd..566c9884c 100644
--- a/install/rhel/6/templates/web/httpd/basedir.tpl
+++ b/install/rhel/6/templates/web/httpd/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/6/templates/web/httpd/hosting.stpl b/install/rhel/6/templates/web/httpd/hosting.stpl
index a9e2edb1f..f1c1c1111 100644
--- a/install/rhel/6/templates/web/httpd/hosting.stpl
+++ b/install/rhel/6/templates/web/httpd/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/6/templates/web/httpd/hosting.tpl b/install/rhel/6/templates/web/httpd/hosting.tpl
index 74acb2dae..65bf20fd3 100644
--- a/install/rhel/6/templates/web/httpd/hosting.tpl
+++ b/install/rhel/6/templates/web/httpd/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/7/templates/web/httpd/basedir.stpl b/install/rhel/7/templates/web/httpd/basedir.stpl
index 29ee67637..952215394 100644
--- a/install/rhel/7/templates/web/httpd/basedir.stpl
+++ b/install/rhel/7/templates/web/httpd/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/7/templates/web/httpd/basedir.tpl b/install/rhel/7/templates/web/httpd/basedir.tpl
index 549208167..e1f86c704 100644
--- a/install/rhel/7/templates/web/httpd/basedir.tpl
+++ b/install/rhel/7/templates/web/httpd/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/rhel/7/templates/web/httpd/hosting.stpl b/install/rhel/7/templates/web/httpd/hosting.stpl
index 79bf20876..673c9c017 100644
--- a/install/rhel/7/templates/web/httpd/hosting.stpl
+++ b/install/rhel/7/templates/web/httpd/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/rhel/7/templates/web/httpd/hosting.tpl b/install/rhel/7/templates/web/httpd/hosting.tpl
index 893db7d8c..25f8e3bf9 100644
--- a/install/rhel/7/templates/web/httpd/hosting.tpl
+++ b/install/rhel/7/templates/web/httpd/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/12.04/templates/web/apache2/basedir.stpl b/install/ubuntu/12.04/templates/web/apache2/basedir.stpl
index 8ee55ea3e..dda3aa760 100644
--- a/install/ubuntu/12.04/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/12.04/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/12.04/templates/web/apache2/basedir.tpl b/install/ubuntu/12.04/templates/web/apache2/basedir.tpl
index aab9e0278..9449bc447 100644
--- a/install/ubuntu/12.04/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/12.04/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/12.04/templates/web/apache2/hosting.stpl b/install/ubuntu/12.04/templates/web/apache2/hosting.stpl
index a3928bf2e..627325e06 100644
--- a/install/ubuntu/12.04/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/12.04/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/12.04/templates/web/apache2/hosting.tpl b/install/ubuntu/12.04/templates/web/apache2/hosting.tpl
index 869d601e3..3e30d737b 100644
--- a/install/ubuntu/12.04/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/12.04/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/12.10/templates/web/apache2/basedir.stpl b/install/ubuntu/12.10/templates/web/apache2/basedir.stpl
index 8ee55ea3e..dda3aa760 100644
--- a/install/ubuntu/12.10/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/12.10/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/12.10/templates/web/apache2/basedir.tpl b/install/ubuntu/12.10/templates/web/apache2/basedir.tpl
index aab9e0278..9449bc447 100644
--- a/install/ubuntu/12.10/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/12.10/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/12.10/templates/web/apache2/hosting.stpl b/install/ubuntu/12.10/templates/web/apache2/hosting.stpl
index a3928bf2e..627325e06 100644
--- a/install/ubuntu/12.10/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/12.10/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/12.10/templates/web/apache2/hosting.tpl b/install/ubuntu/12.10/templates/web/apache2/hosting.tpl
index 869d601e3..3e30d737b 100644
--- a/install/ubuntu/12.10/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/12.10/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/13.04/templates/web/apache2/basedir.stpl b/install/ubuntu/13.04/templates/web/apache2/basedir.stpl
index 8ee55ea3e..dda3aa760 100644
--- a/install/ubuntu/13.04/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/13.04/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/13.04/templates/web/apache2/basedir.tpl b/install/ubuntu/13.04/templates/web/apache2/basedir.tpl
index aab9e0278..9449bc447 100644
--- a/install/ubuntu/13.04/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/13.04/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/13.04/templates/web/apache2/hosting.stpl b/install/ubuntu/13.04/templates/web/apache2/hosting.stpl
index 6cfd1bfb2..ce0763ae8 100644
--- a/install/ubuntu/13.04/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/13.04/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/13.04/templates/web/apache2/hosting.tpl b/install/ubuntu/13.04/templates/web/apache2/hosting.tpl
index fcb9fcccc..f3491a5fe 100644
--- a/install/ubuntu/13.04/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/13.04/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/13.10/templates/web/apache2/basedir.stpl b/install/ubuntu/13.10/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/ubuntu/13.10/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/13.10/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/13.10/templates/web/apache2/basedir.tpl b/install/ubuntu/13.10/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/ubuntu/13.10/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/13.10/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/13.10/templates/web/apache2/hosting.stpl b/install/ubuntu/13.10/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/ubuntu/13.10/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/13.10/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/13.10/templates/web/apache2/hosting.tpl b/install/ubuntu/13.10/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/ubuntu/13.10/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/13.10/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/14.04/templates/web/apache2/basedir.stpl b/install/ubuntu/14.04/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/ubuntu/14.04/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/14.04/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/14.04/templates/web/apache2/basedir.tpl b/install/ubuntu/14.04/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/ubuntu/14.04/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/14.04/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/14.04/templates/web/apache2/hosting.stpl b/install/ubuntu/14.04/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/ubuntu/14.04/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/14.04/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/14.04/templates/web/apache2/hosting.tpl b/install/ubuntu/14.04/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/ubuntu/14.04/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/14.04/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/14.10/templates/web/apache2/basedir.stpl b/install/ubuntu/14.10/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/ubuntu/14.10/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/14.10/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/14.10/templates/web/apache2/basedir.tpl b/install/ubuntu/14.10/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/ubuntu/14.10/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/14.10/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/14.10/templates/web/apache2/hosting.stpl b/install/ubuntu/14.10/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/ubuntu/14.10/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/14.10/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/14.10/templates/web/apache2/hosting.tpl b/install/ubuntu/14.10/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/ubuntu/14.10/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/14.10/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/15.04/templates/web/apache2/basedir.stpl b/install/ubuntu/15.04/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/ubuntu/15.04/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/15.04/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/15.04/templates/web/apache2/basedir.tpl b/install/ubuntu/15.04/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/ubuntu/15.04/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/15.04/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/15.04/templates/web/apache2/hosting.stpl b/install/ubuntu/15.04/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/ubuntu/15.04/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/15.04/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/15.04/templates/web/apache2/hosting.tpl b/install/ubuntu/15.04/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/ubuntu/15.04/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/15.04/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/15.10/templates/web/apache2/basedir.stpl b/install/ubuntu/15.10/templates/web/apache2/basedir.stpl
index 580b8b931..d978d4c43 100644
--- a/install/ubuntu/15.10/templates/web/apache2/basedir.stpl
+++ b/install/ubuntu/15.10/templates/web/apache2/basedir.stpl
@@ -18,7 +18,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/15.10/templates/web/apache2/basedir.tpl b/install/ubuntu/15.10/templates/web/apache2/basedir.tpl
index dfce41921..96c94a1bd 100644
--- a/install/ubuntu/15.10/templates/web/apache2/basedir.tpl
+++ b/install/ubuntu/15.10/templates/web/apache2/basedir.tpl
@@ -17,7 +17,7 @@
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
     </Directory>
     <Directory %home%/%user%/web/%domain%/stats>
         AllowOverride All
diff --git a/install/ubuntu/15.10/templates/web/apache2/hosting.stpl b/install/ubuntu/15.10/templates/web/apache2/hosting.stpl
index 1762bc674..8892072b1 100644
--- a/install/ubuntu/15.10/templates/web/apache2/hosting.stpl
+++ b/install/ubuntu/15.10/templates/web/apache2/hosting.stpl
@@ -21,7 +21,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp
diff --git a/install/ubuntu/15.10/templates/web/apache2/hosting.tpl b/install/ubuntu/15.10/templates/web/apache2/hosting.tpl
index 296e25f37..1eb269103 100644
--- a/install/ubuntu/15.10/templates/web/apache2/hosting.tpl
+++ b/install/ubuntu/15.10/templates/web/apache2/hosting.tpl
@@ -20,7 +20,7 @@
         php_admin_value memory_limit 32M
         php_admin_flag mysql.allow_persistent  off
         php_admin_flag safe_mode off
-        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain%"
+        php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f info@%domain_idn%"
         php_admin_value open_basedir %docroot%:%home%/%user%/tmp:/bin:/usr/bin:/usr/local/bin:/var/www/html:/tmp:/usr/share:/etc/phpMyAdmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/etc/roundcubemail:/etc/roundcube:/var/lib/roundcube
         php_admin_value upload_tmp_dir %home%/%user%/tmp
         php_admin_value session.save_path %home%/%user%/tmp