Duplicated message-id and mail not delivered
Good day all,
We do encounter a problem once or twice every few months where some messages forwarded from an external address is not delivered to forwarded address..
email from email@example.com is sent to firstname.lastname@example.org ...xxx then forwards it email@example.com (chaps.com is on our zimbra box), now the sent message either doesnt arrive in the inbox of firstname.lastname@example.org or it appears for a second or 2 then disappears from the inbox.
Now i have done some digging around the mailbox log and i found this:
Line 1176623: 2012-09-20 12:08:58,646 INFO [ScheduledTask-7] [email@example.com;mid=15;ds=reco rds;] mailbox - not delivering message with Message-ID <25945494.691.1348156926848.JavaMail.Edward@R9-FCWNK> because it is a duplicate of sent message 231655
What would cause the message it to be duplicated ?? How can i prevent his this ? Whenever we try to forward the message the same thing keeps happening.