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  1. #1

    Cannot get mail to a particular domain (driving me NUTS!)

    Hello,

    Can anyone possibly help with this problem???

    Users on my machine cannot send e-mail to any user on the domain 'llrcpa.com'. We have been working with this problem for 3 weeks and can't find out the cause. This domain is an important destination for us, and we send email to this domain almost every day.

    Here is what we've found.

    - Every server I can find CAN send mail to this domain, except mine. The admin of the other server insists that they aren't blocking or anything.

    - I'm not on any blackholes, etc.

    - For a while, I would send a message and it would sit in the queue, with a ''couldn't connect' problem. For the last 2 days, the emails go right through, but then get returned with an 'undelierable mail' message (generic).

    - I can ping the other mail server, but I can't telnet to it on port 25. On other servers, I CAN telnet to it on port 25.

    Well, thats it! I can't figure it out and my ISP is not very helpful. Both isp's blame it on the other, which doesn't help me very much!

    Any help appreciated, thanks!
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  2. #2
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    Telnet has nothing to do with it, it's disabled on most servers because it's insecure. To make sure your not on any blacklists, do a check of the IP your sending mail from at http://www.dnsstuff.com/ Also check if your reverse DNS is properly setup. If you get a chance, paste the contents of the error e-mail you receive from the mailer daemon.

  3. #3
    thanks for your response..

    dnsstuff.com indicates that my domain is fine. Note that I AM able to telnet to this mail server via port 25 (as a diagnostic) without any trouble from other servers, but not from mine. So, it seems that my server simply can't reach this mail server to deliver mail.

    the error message I get is generic - "A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:"
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  4. #4
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    Check if your reverse DNS is setup probably, run it through http://www.dnsreport.com/

    Also, can the users from the domain your sending to, send e-mails to you?

  5. #5
    Yes , all of my mail settings are good, including rDNS.
    And yes, I can receive mail from them no problem!
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  6. #6
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    Well even a mailer-daemon response is good, at least it's getting to the server. But it seems to be rejecting your e-mails for some reason. Can you post the rest of the error, there should be some errors after some of the e-mail addresses.

  7. #7
    That's it

    It just lists the email addresses that were undeliverable and then repeats the original msg. Very strange.
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  8. #8
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    Yea sorry, don't know what to tell ya, there's usually some kind of error message that gives a reason why the mail was rejected.

  9. #9
    The only thing I can find in the exim logs that relates to the failed delivery is this:

    R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  10. #10
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    Ah, looks like you may be looking at the wrong error message. The message your looking at right now simply says the retry time was exceeded. Are you using cPanel by any chance?

  11. #11
    yes, I am using cpanel...

    That error came from what I think is the exim log in cpanel..
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  12. #12
    Join Date
    Jun 2003
    Location
    Indiana, US
    Posts
    1,354
    OK, I'm going to assume you have access to WHM too. Send an e-mail to the domain, and goto "Manage Mail Queue" in WHM and look for your e-mail. Click on the code that represents your e-mail, and then elect "Deilver Message Now". Then paste the results here.

    You might as well check and see if your other e-mails are in the mail queue too.

  13. #13
    Are you using virtual ip's? Make sure your routing is correct. If you are using virtual ip's

    /usr/sbin/telnet -b virtualip mail.llrcpa.com 25

    or do a traceroute to see if you can get to the mail server. Seems like a routing issue.

    Do you have a mail account on the problem domain? If you do, then manually send an e-mail message via telnet using helo. If it doesn't go through then, then you know its at least the receiving server.

  14. #14
    Join Date
    Aug 2004
    Location
    Groton, Connecticut
    Posts
    925
    I've actually experienced this kind of problem, make sure the domain llcrpa.com isn't on the server, or anywhere in the records. Remove it from the records and it should work. ( That's how I got mines fixed )

  15. #15
    Join Date
    Jun 2005
    Location
    India
    Posts
    123
    Originally posted by PTH
    I've actually experienced this kind of problem, make sure the domain llcrpa.com isn't on the server, or anywhere in the records. Remove it from the records and it should work. ( That's how I got mines fixed )
    Hello,
    I don't think so, if the domain entry resides in that server he will get the local delivery complete message.

    try this command and paste the result
    ===============================
    exim -bt -d [email protected]
    ===============================

    Let me know the status

    With regards,
    Bijo

  16. #16
    Join Date
    Jun 2004
    Posts
    523
    Looks to be queued fine:

    ./testmail llrcpa.com
    Sending test email to [email protected] ........
    Processing....
    LOG: MAIN
    <= [email protected] U=mpoole P=local S=339
    Retriving results....
    delivering 1DqnRJ-00034n-DG
    Connecting to MAIL.llrcpa.com [66.166.55.202]:25 ... connected
    SMTP<< 220 llrcpa.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.211 ready at Fri, 8 Jul 2005 00:32:40 -0700
    SMTP>> EHLO csctools.internal
    SMTP<< 250-llrcpa.com Hello [84.92.0.48]
    250-TURN
    250-SIZE
    250-ETRN
    250-PIPELINING
    250-DSN
    250-ENHANCEDSTATUSCODES
    250-8bitmime
    250-BINARYMIME
    250-CHUNKING
    250-VRFY
    250-X-EXPS GSSAPI NTLM LOGIN
    250-X-EXPS=LOGIN
    250-AUTH GSSAPI NTLM LOGIN
    250-AUTH=LOGIN
    250-X-LINK2STATE
    250-XEXCH50
    250 OK
    SMTP>> MAIL FROM:<[email protected]> SIZE=1372
    SMTP>> RCPT TO:<[email protected]>
    SMTP>> DATA
    SMTP<< 250 2.1.0 [email protected]....Sender OK
    SMTP<< 250 2.1.5 [email protected]
    SMTP<< 354 Start mail input; end with <CRLF>.<CRLF>
    SMTP>> writing message and terminating "."
    SMTP<< 250 2.6.0 <[email protected]> Queued mail for delivery
    SMTP>> QUIT
    LOG: MAIN
    => [email protected] R=dnslookup T=remote_smtp H=MAIL.llrcpa.com [66.166.55.202]
    LOG: MAIN
    Completed

  17. #17
    Here is what came back:

    [email protected] [~]# exim -bt -d [email protected]
    Exim version 4.51 uid=0 gid=0 pid=6688 D=fbb95cfd
    Berkeley DB: Sleepycat Software: Berkeley DB 4.2.52: (March 2, 2004)
    Support for: iconv() PAM Perl OpenSSL Content_Scanning Old_Demime
    Lookups: lsearch wildlsearch nwildlsearch iplsearch dbm dbmnz
    Authenticators: cram_md5 plaintext spa
    Routers: accept dnslookup ipliteral manualroute queryprogram redirect
    Transports: appendfile autoreply pipe smtp
    changed uid/gid: forcing real = effective
    uid=0 gid=0 pid=6688
    auxiliary group list: <none>
    configuration file is /etc/exim.conf
    log selectors = 00000ffc 00020800
    trusted user
    admin user
    finduser used cached passwd data for mailman
    originator: uid=0 gid=0 login=root name=root
    sender address = [email protected]
    Address testing: uid=0 gid=12 euid=0 egid=12
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    Testing [email protected]
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    Considering [email protected]
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    routing [email protected]
    --------> defer_router router <--------
    local_part=test domain=llcpa.com
    calling defer_router router
    rda_interpret (string): :defer: All deliveries are handled by MailScanner
    expanded: :defer: All deliveries are handled by MailScanner
    file is not a filter file
    parse_forward_list: :defer: All deliveries are handled by MailScanner
    extract item: :defer: All deliveries are handled by MailScanner
    defer_router router: defer for [email protected]
    message: All deliveries are handled by MailScanner
    [email protected] cannot be resolved at this time:
    All deliveries are handled by MailScanner
    search_tidyup called
    >>>>>>>>>>>>>>>> Exim pid=6688 terminating with rc=1 >>>>>>>>>>>>>>>>
    [email protected] [~]#
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  18. #18
    Join Date
    Jun 2005
    Location
    India
    Posts
    123

  19. #19
    Hi Bijo - I can send to every domain except that one! Updating, etc. didn't change anything
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  20. #20
    Join Date
    Jun 2005
    Location
    India
    Posts
    123

  21. #21
    already did that - look above !
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  22. #22
    Join Date
    Jun 2005
    Location
    India
    Posts
    123

  23. #23
    It just gets this far, then hangs:


    [email protected] [~]# mail -v [email protected]
    Subject: test
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  24. #24
    Join Date
    Jun 2005
    Location
    India
    Posts
    123
    Originally posted by dhecker
    It just gets this far, then hangs:


    [email protected] [~]# mail -v [email protected]
    Subject: test
    Hello,

    Type the following
    #mail -v [email protected]
    #subject:test
    press enter
    type the content
    ---------------------------------
    press ctrl+d
    cc:
    press enter

    and then paste the log here also run this command and paste the result
    ----------------------------------------------
    exim -bt -d [email protected]
    ----------------------------------------------

    With regards,
    Bijo

  25. #25
    Here is the output:

    [email protected] [~]# mail -v [email protected]
    Subject: test
    test
    Cc:
    LOG: MAIN
    <= [email protected] U=root P=local S=312
    [email protected] [~]# exim -bt -d [email protected]
    Exim version 4.51 uid=0 gid=0 pid=16709 D=fbb95cfd
    Berkeley DB: Sleepycat Software: Berkeley DB 4.2.52: (March 2, 2004)
    Support for: iconv() PAM Perl OpenSSL Content_Scanning Old_Demime
    Lookups: lsearch wildlsearch nwildlsearch iplsearch dbm dbmnz
    Authenticators: cram_md5 plaintext spa
    Routers: accept dnslookup ipliteral manualroute queryprogram redirect
    Transports: appendfile autoreply pipe smtp
    changed uid/gid: forcing real = effective
    uid=0 gid=0 pid=16709
    auxiliary group list: <none>
    configuration file is /etc/exim.conf
    log selectors = 00000ffc 00020800
    trusted user
    admin user
    finduser used cached passwd data for mailman
    originator: uid=0 gid=0 login=root name=root
    sender address = [email protected]
    Address testing: uid=0 gid=12 euid=0 egid=12
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    Testing [email protected]
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    Considering [email protected]
    >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
    routing [email protected]
    --------> defer_router router <--------
    local_part=test domain=llrcpa.com
    calling defer_router router
    rda_interpret (string): :defer: All deliveries are handled by MailScanner
    expanded: :defer: All deliveries are handled by MailScanner
    file is not a filter file
    parse_forward_list: :defer: All deliveries are handled by MailScanner
    extract item: :defer: All deliveries are handled by MailScanner
    defer_router router: defer for [email protected]
    message: All deliveries are handled by MailScanner
    [email protected] cannot be resolved at this time:
    All deliveries are handled by MailScanner
    search_tidyup called
    >>>>>>>>>>>>>>>> Exim pid=16709 terminating with rc=1 >>>>>>>>>>>>>>>>
    [email protected] [~]#
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  26. #26
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  27. #27
    Join Date
    Aug 2003
    Posts
    833
    Originally posted by dhecker
    Hi Bijo - I can send to every domain except that one! Updating, etc. didn't change anything
    Are those domains you can send mails to within the same server or on other server(s)?

  28. #28
    I can send mail to any domain, except that one... I don't know of any other domains on that machine....
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

  29. #29
    Join Date
    Aug 2003
    Posts
    833
    I mean are all those domains you can send mails to on the same machine you sent from or different?

  30. #30
    I'm not sure I understand. I can send mail to everyone except that one domain.
    RevMedia, Inc.
    Quality Offshore Development Services
    On Time. On Budget.
    http://www.revmedia.com

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