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  1. Replies
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    Suspicious attack? (Tons of rejected emails)

    Hi all,

    Today when I check on the daily mail report, i found over 27K rejected emails from our server, someone seems to sending emails to account with random name, is there anyway to stop this?...
  2. We have Zenosis which is running on the same...

    We have Zenosis which is running on the same server as email server, don't know if it is related, I will check the log, thanks.
  3. I have blocked 2 ips from firewall and seems it...

    I have blocked 2 ips from firewall and seems it is now temporary solved, thanks so much.

    Now time to request unblock :eek:


    Another question, did you guys setup any RBLs in the admin console?
  4. Thanks, the suspected account has been closed,...

    Thanks, the suspected account has been closed, and the internal IP address is my email server.

    Still no clue how to solve this yet

    5550
  5. Really thanks. This is the message I seen from...

    Really thanks.

    This is the message I seen from audit.log, it seems it is the suspected account which I have closed, however the email still sending out from our server, however there is still...
  6. This is what is shown on mailq | more.. however...

    This is what is shown on mailq | more.. however they are not under my domain, I found some settings to block incoming mail but not sending from our domain, really sad.

    Still checking how to...
  7. Thanks, will do. I did (" cat maillog | grep...

    Thanks, will do.

    I did (" cat maillog | grep "sasl_username" ")and found lots of them are sent by "test" account, which i have just blocked it and password changed, but unfortunately it doesn't...
  8. When I do cat maillog | grep "Message ID".. It...

    When I do cat maillog | grep "Message ID"..

    It has multiple result in different time like it is retrying to send the same mail, is it any settings to block retry on failure??
  9. Thanks for replying, what does mailq do? Is...

    Thanks for replying, what does mailq do?

    Is there any command to check which mailID used in each email sent from the log? I remember there is but I just couldn't recall it.
  10. Massive amount of emails sending from my email server

    Hi all,

    From maillog / zimbra log, we found that many messages sending from our email servers with "from=<>", and I have checked our server is not a open relay server by MXtools5542. 5543

    We...
  11. May I know if there is any settings in Zimbra so...

    May I know if there is any settings in Zimbra so that it has notification email when the cert if going to be expired?
  12. I have removed "203.185.55.209 ms1.mydomain ms1"...

    I have removed "203.185.55.209 ms1.mydomain ms1" from /etc/hosts, and the server ran for 1.5 years, no problem resolving the server address from internet or internal network.

    ns1.mydomain is the...
  13. host ms1.mydomain

    host ms1.mydomain
  14. Here is the error log from zimbra.log

    Here is the error log from zimbra.log
  15. zmcontrol status cat /etc/hosts dig...

    zmcontrol status



    cat /etc/hosts


    dig ms1.mydomain mx
  16. Server goes down (Unable to determine enabled services from ldap)

    Hi all,

    My server goes down today and I found ldap is not working with captioned error, I searched the post and found it should be cert expired.

    I follow the steps below, however...
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    :eek: Thanks :D

    :eek:

    Thanks :D
  18. Replies
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    1,852

    Got it and thank you very much, I will change it...

    Got it and thank you very much, I will change it as below (After office hour), and will it solve the anonymous TLS and Name or service not known issue?

    cat /etc/hosts

    127.0.0.1...
  19. Replies
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    1,852

    Thanks Phoenix Since our mail server is...

    Thanks Phoenix

    Since our mail server is designed for accessing from outside our company without VPN, so I think they (previous administrator) add this 2 lines on /etc/resolv.conf, or is it not...
  20. Replies
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    1,852

    Error found in maillog

    Hi all,

    I have the same problem in this thread below.
    http://www.zimbra.com/forums/installation/27291-solved-error-log-name-service-not-known.html

    Error message


    Also, there is some...
  21. Replies
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    Path for upgrade from 6.x

    Hi all,

    I am now using Release 6.0.10_GA_2692.RHEL5_64_20101215170845 CentOS5_64 FOSS edition for our mail server, if I want to upgrade it to the latest version, which one should I pick first or...
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    I just found there is another argument in...

    I just found there is another argument in zmlocalconfig.... I wonder if it is the settings I need to modify.


    $ zmlocalconfig | grep 'smtp'

    smtp_destination = root@mydomain.com
    smtp_source =...
  23. Replies
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    Change the notification email address

    Hi all,

    Recently there are some notification emails which send to admin@mydomain.com, like one of them below, may I know which settings should I modify to change the destination of the email...
  24. Thanks alot, I have changed my password and seems...

    Thanks alot, I have changed my password and seems the issue was fixed.

    Btw, I am a Man United Fans :p
  25. Also tested with Open Relay Test...

    Also tested with Open Relay Test, the result is positive.

    "All tested completed! No relays accepted by remote host!"
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