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Thread: Prevent duplicate delivery

  1. #1
    stace is offline Active Member
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    Default Prevent duplicate delivery

    I'm a longtime cyrus user, and have switched to Zimbra for a number of reasons. Our site has a growing Zimbra install, and I'm hoping it's going to supplant Exchange at some point, but in order for this to work, there are the niggling little things that need to get solved.

    The current issue is duplicate e-mail messages. Cyrus is smart enough, for example, to only deliver one copy of a message to my inbox with the same msgid. This means that when someone sends mail to a mailing list I'm on and CCs me as well, I get only one copy in cyrus.

    Not so with Zimbra. I've, at times, received up to four copies of the message (via IMAP or in the web client directly, as well as with my Windows Mobile device using Zimbra Mobile) due to a number of mailing lists being in the recipient list -- all of the duplicates having the same msgid.

    I've tried putting the following in my .procmailrc on our mail relay:

    ### Duplicate filter
    :0Whc:/homes/stace/msgid.lock
    | formail -D 262144 /homes/stace/msgid.cache
    :0a:
    | $DELIVERIT user.$CYUSER

    (the second part of the recipe delivers anything tagged as a duplicate to my inbox on the mail relay server. A later rule delivers all messages that pass through the rest of the procmailrc to my Zimbra mailbox)

    It doesn't fly. It catches *some* duplicates, but not all. In fact, not most.

    But I shouldn't have to try to catch this in procmail. Is there some method to prevent duplicates in Zimbra that we're missing? Are others hitting this issue?

  2. #2
    phoenix is offline Zimbra Consultant & Moderator
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    Default

    Check the users Options/Mail tab and chage the option "If I send a message that I then receive".
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    stace is offline Active Member
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    Default

    If I read that correctly, it will prevent me from receiving a duplicate of a message if I BCC: myself.

    I actually *want* to receive a copy of a message I send (for various reasons). What I'm trying to avoid is the situation where someone sends mail to foo@example.com and CCs me, resulting in two copies of the message (assuming I'm a member of foo@example.com).

    I see a thread some time back from a colleague on this:

    Eliminate Duplicate Emails

    Thing is -- we *have* that set. It's still not doing the right thing.

  4. #4
    moejab is offline Member
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    Default Duplication occurs with specific users

    Where do I make this change. I have Outlook 2003. Is it done on the web client on the Outlook client.

  5. #5
    dkarp is offline Zimbra Employee
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    Default What's the value set to?

    Quote Originally Posted by stace View Post
    I see a thread some time back from a colleague on this:

    Eliminate Duplicate Emails

    Thing is -- we *have* that set. It's still not doing the right thing.
    Make sure that it's set high enough. If you're running through more than that many messages between receiving the first copy and receiving the second -- or if you restart the server in between -- the first one won't be in the Message-ID set when the second arrives and there will be no deduping.
    Bugzilla - Wiki - Downloads - Before posting... Search!

  6. #6
    moejab is offline Member
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    I am not quite sure we are on the same page. The Zimbra employee (Phoenix) said to make the following change: "Check the users Options/Mail tab and chage the option "If I send a message that I then receive". My question is where do I make this change?

  7. #7
    dkarp is offline Zimbra Employee
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    Quote Originally Posted by moejab View Post
    I am not quite sure we are on the same page. The Zimbra employee (Phoenix) said to make the following change: "Check the users Options/Mail tab and chage the option "If I send a message that I then receive". My question is where do I make this change?
    In the web client.
    Bugzilla - Wiki - Downloads - Before posting... Search!

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