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Thread: Nested distribution lists

  1. #1
    Britt is offline Intermediate Member
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    Default Nested distribution lists

    I'm currently using several nested distribution lists and I noticed a strange problem today. I work for a school system, and all schools and administrative departments have their own lists, and then master lists for all elementary, all middle, and all high school accounts. On top of all of this I have a top level distribution list that then sends to each of these lists.

    So.... school1 and school2 are members of _middleschools, _middleschools is a member of _everyone. Sending to _everyone sends to school1 and school2. This works pretty well until I add all my groups in.

    I've got 2269 users, and when I add the nested distribution lists piece by piece, everything sends to a certain point, and then some of the distribution lists get dropped, and I recieve Postfix error messages like so:
    This is the Postfix program at host mta.rcps.info.

    I'm sorry to have to inform you that your message could not
    be delivered to one or more recipients. It's attached below.

    For further assistance, please send mail to <postmaster>

    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.

    The Postfix program

    <_rvjdc@rcps.info>: rcps.info

    Is there an upper limit to number of recipients that can be sent in a single distribution list? Or perhaps a limit on nested levels? The groups that get dropped are mostly consistent, but not completely, and are not alphabetical by either the top-level distribution lists or by the lowest level distribution lists.

    I'm using 4.5.2 GA 699 MACOSX FOSS installation on OSX Server 10.4.8.

    Thanks

  2. #2
    jhaefele is offline New Member
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    Default Similar Issue

    We've seen the same thing at our high school.

    Distribution list: wholeschool@school.org
    • classof2013@school.org
    • classof2012@school.org
    • classof2011@school.org
    • classof2010@school.org
    • facstaff@school.org


    Each of the classes get the message, but nobody in facstaff@school.org does.

    The total of the first four lists is ~1050 users, with an additional 175 in facstaff. We're receiving no error messages, and the students all seem to be getting the announcements bulletins we're sending out via this list (though it's impossible to say; it could simply be that no students have reported any problem).

    Any help on this would be fantastic.

  3. #3
    pat_allen is offline Intermediate Member
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    Default Was this ever resolved?

    We're considering migrating from Exchange to Zimbra and have multiple nested distribution lists. Was this issue ever identified and resolved? THANKS!

  4. #4
    jhaefele is offline New Member
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    Default

    This problem went away at some point, though I can't necessarily pinpoint when it happened. Possibly in a minor version upgrade, possibly when we went to 6.x. It is definitely working, though, as I just received a message addressed to the whole school in the last couple of days.

    A somewhat-unrelated issue we encountered with students was that many of our students forward their messages to an external, personal account, and that messages delivered to a nested distro wouldn't forward. The message would land in their Inbox, but not get forwarded on. This did not happen when the message was sent to the classof2013@school.org address, however; in these cases the messages were forwarded normally. This also seems to have been resolved, though.

    All things considered, we've been extremely happy with our Zimbra installation, and would recommend it. The web client is robust, server setup is a relative breeze (in testing, we went from download to installed, functional server [including LDAP integration] in < 3 hours), and with ActiveSync masquerading, our smart phone users are happy. There are some minor issues I've had in the past with UI, but even those have apparently been resolved in version 7, to which we'll be migrating this summer.

    Feel free to e-mail with any specific questions.

  5. #5
    pat_allen is offline Intermediate Member
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    Default

    Thanks for the great response. We'll be going straight to version 7 so there shouldn't be any issues there. We're a relatively small organization (~300 mailboxes) but we're a scientific research institute so we've got some pretty demanding (and diverse) users.

    Just out of curiosity, how long have you been using Zimbra and what did you migrate from? Have there been any server outages since you've been using it?

  6. #6
    Rupa Bhat is offline Member
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    Default

    Dear Jhaefele

    I am also facing a similar kind of issue.Following is the structure of DLs.
    DL All@domain.com contains 3o DLs which then contains total 1015 mail ids.e.g. dl1@domain.com,dl2@domain.com..dl30@domain.com are part of DL All@domain.com.

    When i add dl31@domain.com containing 1 mail id mailid1016@domain.com mail bounce with the error as follows:

    From: "Mail Delivery System" <MAILER-DAEMON@mail.domain.com>
    To: mailid1016@domain.com
    Sent: Tuesday, March 26, 2013 3:06:30 PM
    Subject: Undelivered Mail Returned to Sender

    This is the mail system at host mail.domain.com.

    I'm sorry to have to inform you that your message could not
    be delivered to one or more recipients. It's attached below.

    For further assistance, please send mail to postmaster.

    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.

    The mail system

    <dl31@domain.com> domain.com


    But when i add mailid1016@domain.com into any of the 30 existing DLs mail gets delivered successfully. I don't receive any bounce mail

    Zimbra server version: Release 6.0.6_GA_2330.RHEL5_64_20100505212335 RHEL5_64 FOSS edition
    OS: x86_64 GNU/Linux

    Few Postconf parameters set in my server
    virtual_alias_expansion_limit = 1000
    virtual_alias_recursion_limit = 1000
    smtpd_soft_error_limit = 10
    smtpd_starttls_timeout = 300s
    smtpd_recipient_limit = 1000
    smtpd_recipient_overshoot_limit = 1000
    smtpd_hard_error_limit = ${stress?1}${stress:20}

    Please help in fixing this issue. Also let me know in case of any other information that is requred.

  7. #7
    Rupa Bhat is offline Member
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    Default

    We are still facing this issue.Please help.

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