diff --git a/install/debian/7/exim/exim4.conf.template b/install/debian/7/exim/exim4.conf.template
index f515fb18..6ba32240 100644
--- a/install/debian/7/exim/exim4.conf.template
+++ b/install/debian/7/exim/exim4.conf.template
@@ -8,6 +8,7 @@
 #SPAM_SCORE = 50
 #CLAMD =  yes
 
+disable_ipv6=true
 domainlist local_domains = dsearch;/etc/exim4/domains/
 domainlist relay_to_domains = dsearch;/etc/exim4/domains/
 hostlist relay_from_hosts = 127.0.0.1
diff --git a/install/debian/8/exim/exim4.conf.template b/install/debian/8/exim/exim4.conf.template
index a85dda5e..9e5719c5 100644
--- a/install/debian/8/exim/exim4.conf.template
+++ b/install/debian/8/exim/exim4.conf.template
@@ -8,6 +8,7 @@
 #SPAM_SCORE = 50
 #CLAMD =  yes
 
+disable_ipv6=true
 add_environment=<; PATH=/bin:/usr/bin
 keep_environment=
 
diff --git a/install/rhel/6/exim/exim.conf b/install/rhel/6/exim/exim.conf
index 6f9a7388..10ab7eb7 100644
--- a/install/rhel/6/exim/exim.conf
+++ b/install/rhel/6/exim/exim.conf
@@ -8,6 +8,7 @@
 #SPAM_SCORE = 50
 #CLAMD =  yes
 
+disable_ipv6=true
 domainlist local_domains = dsearch;/etc/exim/domains/
 domainlist relay_to_domains = dsearch;/etc/exim/domains/
 hostlist relay_from_hosts = 127.0.0.1
diff --git a/install/rhel/7/exim/exim.conf b/install/rhel/7/exim/exim.conf
index 0d65a405..02f691c0 100644
--- a/install/rhel/7/exim/exim.conf
+++ b/install/rhel/7/exim/exim.conf
@@ -8,6 +8,7 @@
 #SPAM_SCORE = 50
 #CLAMD =  yes
 
+disable_ipv6=true
 domainlist local_domains = dsearch;/etc/exim/domains/
 domainlist relay_to_domains = dsearch;/etc/exim/domains/
 hostlist relay_from_hosts = 127.0.0.1