Hi - At work we migrated to and have been using Zimbra for about a year, we're very happy.
To try out ZCS6 before planning my real-job upgrade, as well as considering it for a replacement to my old-school sendmail/IMAP server my personal domain runs on, I've installed a new instance of Zimbra.
It is happy to receive messages sent to firstname.lastname@example.org (which is how I configured it on install) but I need to test a bunch of things before moving my few users and repointing my MX records - so I'm trying to get to to accept mail for email@example.com.
I've got the DNS for that subdomain set up properly and the MX host is my ZCS instance. Mail is directed there as it should be.
Before making any changes to the Zimbra config, mail to a subdomain failed with the following error in /var/log/maillog:
Nov 5 17:24:50 xxxxxx postfix/smtpd: NOQUEUE: reject: RCPT from xxxxxx.fios.verizon.net[my.home.ip.address]: 554 5.7.1
: Relay access denied; from= to= proto=ESMTP helo=
Then I added the subdomain in the ZCS admin GUI, and added alias to my firstname.lastname@example.org account: email@example.com, and expected that to do the trick. However, now sending the same message results in:
Nov 6 09:38:31 xxxxxxxx postfix/smtpd: NOQUEUE: reject: RCPT from xxxxxxx.fios.verizon.net[my.home.ip.address]: 550 5.1.1
: Recipient address rejected: my.zcs.hostname; from= to= proto=ESMTP helo=
What am I missing?