diff --git a/install/debian/7/templates/web/apache2/basedir.stpl b/install/debian/7/templates/web/apache2/basedir.stpl
index 8ee55ea3..dda3aa76 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 aab9e027..9449bc44 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 a3928bf2..627325e0 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 1d07b4ff..0bdd6ea6 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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 a16f75b0..4ced9f38 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 f611f3bc..566c9884 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 4e2b26a4..f94ba186 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 77d0d2ca..1d3dd354 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 a16f75b0..4ced9f38 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 f611f3bc..566c9884 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 a9e2edb1..f1c1c111 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 74acb2da..65bf20fd 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 29ee6763..95221539 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 54920816..e1f86c70 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 79bf2087..673c9c01 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 893db7d8..25f8e3bf 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 8ee55ea3..dda3aa76 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 aab9e027..9449bc44 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 a3928bf2..627325e0 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 869d601e..3e30d737 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 8ee55ea3..dda3aa76 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 aab9e027..9449bc44 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 a3928bf2..627325e0 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 869d601e..3e30d737 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 8ee55ea3..dda3aa76 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 aab9e027..9449bc44 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 6cfd1bfb..ce0763ae 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 fcb9fccc..f3491a5f 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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 580b8b93..d978d4c4 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 dfce4192..96c94a1b 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 1762bc67..8892072b 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 296e25f3..1eb26910 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