users in co-existing mail server not receiving mails from internet(Split Domain)
Posted on 2012-08-26
I've created a split domain with Lotus Domino(8.5.1) as Primary and Zimbra(7.2) as secondary. So around 50 new mail boxes are created in Zimbra which do not exist in Domino. So whenever Domino handles a mail destined for Zimbra user , it routes the mail to Zimbra through the "smart host" entry which I have given in Domino for co-existance.
The setup works fine internally within LAN.Any user on Zimbra can send/receive mail to and from Domino user and vice versa. Also zimbra user is able to send mails to outside world.(Earlier we had issues which prevented zimbra user sending mails to internet which was solved by EE Expert)
But now the mails destined for zimbra users sent from internet doesn't reach the user.The sender from internet is not getting any bounce message too.Initially it was believed that our Endpoint device which is Sonicwall is checking LDAP server(Lotus LDAP) for list of authorised users who can receive mail. But then we created another LDAP server with entire list of users(domino+ zimbra) , but still zimbra user was not able to receive mails from internet while the domino user was able to.We even deleted the LDAP server from sonicwall to check if it is checking LDAP user to verify if it is a valid recipient.But in all these cases domino user was able to receive mail but zimbra user did not receive. I wonder what could be the reason
I've attached the screenshots of Domino configuration tabs for your reference.Find below the variables you will notice in the configuration pages.
zmail.abc.com - co-existing mail server with Domino(Zimbra)
18.104.22.168 - IP address of zimbra mail server(zmail.abc.com)
Please provide a possible solution to overcome this situation.