diff --git a/config/jail.conf b/config/jail.conf
index 5a6c59e6..c9fb9475 100644
--- a/config/jail.conf
+++ b/config/jail.conf
@@ -622,7 +622,7 @@ logpath = /opt/kerio/mailserver/store/logs/security.log
 
 [courier-auth]
 
-port     = smtp,465,submission,imap3,imaps,pop3,pop3s
+port     = smtp,465,submission,imap,imap3,imaps,pop3,pop3s
 logpath  = %(syslog_mail)s
 backend  = %(syslog_backend)s