May 17 06:03:36 zimbra amavis[1421]: (01421-01) Blocked SPAM, MYNETS LOCAL [192.168.12.234] [192.168.12.234] <"user1"@allstaraustin.com> -> <"user2"@allstaraustin.com>, Message-ID: <380dad24-834a-47c1-a1a3-7fe13b922a78@zimbra.hostedbyaac.com>, mail_id: cE4nI0mxTWkw, Hits: -, size: 2127, 112 ms

I have researched this issue for two days now and cannot find a solution.
I have 10 domains on this Zimbra server. This is the newest domain added after I upgraded from 6.0.9 to 7.0.1. This only happens when user1 sends mail to user2 but not vice versa. Any help to resolve this would be greatly appreciated.

Brian