diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 9e5c503f914df1c247ac1aac82f38ffe25c894ba..e105def17b2c3abf73af3261d340ff2c9aa46a57 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -664,6 +664,7 @@ class installer_base {
 				'virtual_mailbox_base = '.$cf['vmail_mailbox_base'],
 				'virtual_uid_maps = static:'.$cf['vmail_userid'],
 				'virtual_gid_maps = static:'.$cf['vmail_groupid'],
+				'inet_protocols=all',
 				'smtpd_sasl_auth_enable = yes',
 				'broken_sasl_auth_clients = yes',
 				'smtpd_sasl_authenticated_header = yes',
diff --git a/install/tpl/debian6_dovecot.conf.master b/install/tpl/debian6_dovecot.conf.master
index 2b82ba70b03c9a54c8ab4555acd5e2f01c3ec186..4286689cd448ef52004801a89570730b3ac36384 100644
--- a/install/tpl/debian6_dovecot.conf.master
+++ b/install/tpl/debian6_dovecot.conf.master
@@ -5,6 +5,7 @@
 ## Dovecot configuration file
 base_dir = /var/run/dovecot/
 
+listen = *,[::]
 protocols = imap imaps pop3 pop3s
 disable_plaintext_auth = no
 log_timestamp = "%Y-%m-%d %H:%M:%S "
diff --git a/install/tpl/debian6_dovecot2.conf.master b/install/tpl/debian6_dovecot2.conf.master
index bf37bd5306b8db7bf51887e91686fb5fc0b585fd..f9bf27096a0191edb208fe16d13e32dfa78d5c82 100644
--- a/install/tpl/debian6_dovecot2.conf.master
+++ b/install/tpl/debian6_dovecot2.conf.master
@@ -1,3 +1,4 @@
+listen = *,[::]
 protocols = imap pop3
 auth_mechanisms = plain login
 disable_plaintext_auth = no
diff --git a/install/tpl/debian_dovecot.conf.master b/install/tpl/debian_dovecot.conf.master
index 9eca0e1741260cb5f09ccaf56dee5eb538038a83..3d8ea9a267d88274f5aacad57e78db6a6c4a0954 100644
--- a/install/tpl/debian_dovecot.conf.master
+++ b/install/tpl/debian_dovecot.conf.master
@@ -45,6 +45,7 @@ protocols = imap imaps pop3 pop3s
 #     ..
 #   }
 #listen = *
+listen = *,[::]
 
 # Disable LOGIN command and all other plaintext authentications unless
 # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
diff --git a/install/tpl/debian_dovecot2.conf.master b/install/tpl/debian_dovecot2.conf.master
index bf37bd5306b8db7bf51887e91686fb5fc0b585fd..f9bf27096a0191edb208fe16d13e32dfa78d5c82 100644
--- a/install/tpl/debian_dovecot2.conf.master
+++ b/install/tpl/debian_dovecot2.conf.master
@@ -1,3 +1,4 @@
+listen = *,[::]
 protocols = imap pop3
 auth_mechanisms = plain login
 disable_plaintext_auth = no
diff --git a/install/tpl/fedora_dovecot.conf.master b/install/tpl/fedora_dovecot.conf.master
index a49244d7fe8ff7ab6992709cb163f0d3c1749ea5..c11d4010dc7419c1907dab33160466cf604531cc 100644
--- a/install/tpl/fedora_dovecot.conf.master
+++ b/install/tpl/fedora_dovecot.conf.master
@@ -40,6 +40,7 @@ protocols = imap imaps pop3 pop3s
 #     ..
 #   }
 #listen = *, [::]
+listen = *,[::]
 
 # Disable LOGIN command and all other plaintext authentications unless
 # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
diff --git a/install/tpl/fedora_dovecot2.conf.master b/install/tpl/fedora_dovecot2.conf.master
index b45ef3d8eca7c6fef62fd00dc0af9db0c66a24aa..682630642a2d37bb2c3b9e32c2124fc8da71c886 100644
--- a/install/tpl/fedora_dovecot2.conf.master
+++ b/install/tpl/fedora_dovecot2.conf.master
@@ -1,3 +1,4 @@
+listen = *,[::]
 protocols = imap pop3
 auth_mechanisms = plain login
 disable_plaintext_auth = no
diff --git a/install/tpl/opensuse_dovecot.conf.master b/install/tpl/opensuse_dovecot.conf.master
index 287e96a4db9f002ba02042918ea6be1602f308df..a3be4d4b5f66e715db207ead5f82be63ff6cf578 100644
--- a/install/tpl/opensuse_dovecot.conf.master
+++ b/install/tpl/opensuse_dovecot.conf.master
@@ -45,6 +45,7 @@ protocols = imap imaps pop3 pop3s
 #     ..
 #   }
 #listen = *
+listen = *,[::]
 
 # Disable LOGIN command and all other plaintext authentications unless
 # SSL/TLS is used (LOGINDISABLED capability). Note that if the remote IP
diff --git a/install/tpl/opensuse_dovecot2.conf.master b/install/tpl/opensuse_dovecot2.conf.master
index bf37bd5306b8db7bf51887e91686fb5fc0b585fd..f9bf27096a0191edb208fe16d13e32dfa78d5c82 100644
--- a/install/tpl/opensuse_dovecot2.conf.master
+++ b/install/tpl/opensuse_dovecot2.conf.master
@@ -1,3 +1,4 @@
+listen = *,[::]
 protocols = imap pop3
 auth_mechanisms = plain login
 disable_plaintext_auth = no