Eliminate Duplicate Emails

I'm trying to find a way to eliminate duplicate email messages.

I can do this easily in procmail with the following rule, but am unable to have users call procmail from Zimbra, and can't find a "No Duplicates" feature in the mail filters section.

:0 Wh: msgid.lock
| formail -D 32768 procmail.NO_DUPLICATES_MESSAGE_ID_CACHE

Is there any way to do this today?

Zimbra supports a memory-based version of this (i.e. it does not persist through server restarts). Set the "zimbraMessageIdDedupeCacheSize" attribute on the server's configuration and the server will keep that many recipient/Message-ID pairs in a FIFO map, dropping any duplicates it sees.

Hi,

I too got the duplicate email issue. In my sent folder I can see that every message got duplicated.

"Set the "zimbraMessageIdDedupeCacheSize" attribute on the server's configuration and the server will keep that many recipient/Message-ID pairs in a FIFO map, dropping any duplicates it sees."

will this works for me? How can I set that?

Thanks in advance

Options > Mail > set If I send a message that I then receive to Do not receive the message.

Thanks for your reply. After selecting the option that you suggest, I could still see duplicates emails that I have sent in my SENT folder.

That will keep emails that you send to mailing lists from coming back into your Inbox. It will not remove existing duplicates.