Okay. Now that I have migrated some users to my new email server and the other users are still on the old email server, my users on the new email server cannot receive emails sent from users on the old email server. The old email server, which is the secondary email server now has postfix just like zimbra. please explain to me what I should do on the old email server so it send email to my zimbra server for accounts that are now active on the new email server. Someone told me about transport map, but I am not too familiar with how that wors especially in this situation. If zimbra was the secondary email server, I would have used the commands that they have on the wiki.
I try to follow postfix transport(5) setup for my freebsd server (old mailserver) so I can receive emails from accounts still on my secondary server. When I look at the logs I keep seeing firstname.lastname@example.org. I as able to receive an email, but when I replied to the email or send email from my migrated account (zimbra account) to accounts still over there, i get the following message:
This is the mail system at host zimbra.my.account.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<email@example.com>: mail for my.account.com loops back to myself