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Thread: Mail delivery is very slow

  1. #1
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    Default Mail delivery is very slow

    Hi,

    Our customer are facing problem with mail delivery...mail delivery is taking around 1 hour... in defered queue i found more than 2000 mails regarding over quota....!!

    and in avtive queue ..more than 40 mails r in queue..


    I searched this issue in forum...and set below setting as per suggestion to bounced back mail if mailbox is full :


    zmprov mcf zimbraLmtpPermanentFailureWhenOverQuota TRUE


    And its working...but the message format is :

    test@example.com>: host mail.example.com[PRIVATE IP ADDRESS OF MAIL SERVER] said: 552 5.2.2
    Over quota (in reply to end of DATA command)



    So in this mail its showing proviate ip address of mail server next t odomain name....how can we remove that ?


    IS there any other stuff i need to check if mails are getting delivered late ??

    Please help.

  2. #2
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    One more thing...we have one email id backup@example.com...where all clients mails are getting forward and client downloading those mail on daily base on their local disk and taking backup of the pst....


    I found that in active queue ...number of count of mails for this ID is very high ..more than 60. Is there any way where we can set low priority for the mail delivery for this specific email ID ? OR any specific duration ?

    Please help.


    Thanks .

  3. #3
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    Slow mail delivery could be due to a mis-configured DNS especially when performing RBL lookups.

  4. #4
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    Hi Uxbod,

    Thanks for your reply...as u mentioned it can be the dns misconfiguration..but we started facing this issue from last 1 week...before that it was fine...i never seen 100 mails in ACTIVE queue....but still i ll cross check DNS config

    can u pls tell me how can we remove private ip from the message and is it possible to prorities the mail delivery for any specific email id ?

    Please help.


    Thanks

  5. #5
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    I don't think you can; but you should also not be getting a high queue anyway. This would indicate it is related to your original question. If you increase the log_level for Amavis you should be able to track down where the time is taken to process each email.

  6. #6
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    hmmm....ya i have increased the log level for amavis for log level 2 in /opt/zimbra/conf/amavisd.conf.in and restarted zmamavisdctl and zmloggerctl services...is that ok ?

    hey i am keep getting below logs in my zimbra.log :


    Aug 12 14:40:09 mail postfix/qmgr[4858]: 7147BD4122: to=<user@example.com>, relay=none, delay=0.85, delays=0.85/0.01/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to 127.0.0.1[127.0.0.1]: Connection refused)

    Aug 12 14:40:09 mail postfix/qmgr[4858]: 7147BD4122: to=<user@rediffmail.com>, relay=none, delay=0.85, delays=0.85/0.01/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to 127.0.0.1[127.0.0.1]: Connection refused)


    pls suggest..

  7. #7
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    Check /var/log/zimbra.log as Amavis does not appear to be starting up.

  8. #8
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    Hey.i am checking zimbra.log continously...r u talking about below type of logs :

    ug 12 15:04:37 mail amavis[16394]: (16394-15) TIMING [total 4752 ms] - SMTP greeting: 1 (0%)0, SMTP EHLO: 1 (0%)0, SMTP pre-MAIL: 0 (0%)0, lookup_ldap: 4 (0%)0, lookup_ldap: 3 (0%)0, SMTP pre-DATA-flush: 1 (0%)0, SMTP DATA: 32 (1%)1, check_init: 0 (0%)1, digest_hdr: 0 (0%)1, digest_body: 0 (0%)1, gen_mail_id: 0 (0%)1, mime_decode: 4 (0%)1, get-file-type1: 15 (0%)1, decompose_part: 1 (0%)1, parts_decode: 0 (0%)1, check_header: 1 (0%)1, AV-scan-1: 2 (0%)1, spam-wb-list: 2 (0%)1, SA parse: 2 (0%)1, SA check: 4657 (98%)99, update_cache: 4 (0%)100, decide_mail_destiny: 1 (0%)100, fwd-connect: 6 (0%)100, fwd-mail-pip: 4 (0%)100, fwd-rcpt-pip: 0 (0%)100, fwd-data-chkpnt: 0 (0%)100, write-header: 0 (0%)100, fwd-data-contents: 0 (0%)100, fwd-end-chkpnt: 4 (0%)100, prepare-dsn: 1 (0%)100, main_log_entry: 4 (0%)100, SMTP pre-response: 0 (0%)100, SMTP response: 0 (0%)100, unlink-1-files: 0 (0%)100, rundown: 0 (0%)100
    Aug 12 15:04:37 mail amavis[16394]: (16394-15) Requesting process rundown after 20 tasks (and 15 sessions)


    ###########################################

    one more thing i hav eobserved that most of the mails are getting stuck in defered queue with below error details :

    1. delivery temporaly suspended [127.0.0.1] connection timeout
    2. mail transport unavalible
    3 . lost connection with server while receviing initial greeting from server


    Pls suggest

  9. #9
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    one more thing...i was getting below error

    Aug 12 08:57:18 mail amavis[9518]: Net::Server: Accept failed with 13 tries left: Invalid argument
    Aug 12 08:57:19 mail amavis[9518]: Net::Server: Accept failed with 12 tries left: Invalid argument
    Aug 12 08:57:20 mail amavis[9518]: Net::Server: Accept failed with 11 tries left: Invalid argument
    Aug 12 08:57:21 mail amavis[9518]: Net::Server: Accept failed with 10 tries left: Invalid argument
    Aug 12 08:57:22 mail amavis[9518]: Net::Server: Accept failed with 9 tries left: Invalid argument
    Aug 12 08:57:23 mail amavis[9518]: Net::Server: Accept failed with 8 tries left: Invalid argument
    Aug 12 08:57:24 mail amavis[9518]: Net::Server: Accept failed with 7 tries left: Invalid argument
    Aug 12 08:57:25 mail amavis[9518]: Net::Server: Accept failed with 6 tries left: Invalid argument
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B19EFD4596: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B2F47D4234: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: BE591D4460: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B9684D43A4: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B61DDD4302: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B6071D4318: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B0B05D423E: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B1551D42C4: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: B90CCD4370: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: BFA9BD4496: removed
    Aug 12 08:57:26 mail postfix/postsuper[12361]: BA166D410E: removed


    and when i kill master amavisd service and restarted it..then it got removed....pls let me know wht can be the reason for connection time out error and transport unavalible..

  10. #10
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    Code:
    SA check: 4657
    What RBLs are you using and have you added any additional rules ?

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