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Thread: no mailbox found when mailing a client

  1. #1
    ecobrazim is offline Loyal Member
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    Default no mailbox found when mailing a client

    Hi all,

    I am having a problem mailing one of my clients. I am fairly sure that the problem is on his side but he assures me he can receive emails from everybody else.

    Here is the message I get:

    Code:
    <jdoe@example.be>: host mail.example.be[87.98.222.111] said: 550 sorry, no mailbox here by that name. (#5.7.17) (in reply to RCPT TO command)
    Of course, I can send to everybody else except to him... so who is in the wrong?

    I did a little research and found the following which seems all wrong to me but hey, he gets emails so maybe I am in the wrong.


    I checked to make sure the IP above did point to the clients domain (example.be)

    Code:
    $ host 87.98.222.111
    87-98-222-111.ovh.net.
    Now I see it points to OVH which is a French hosting provider. So where does the domain name point to?

    Code:
    $ dig mail.example.be
    mail.example.be.      86400   IN      A       87.98.222.197
    Now I try and telnet to test it and find out that there is yet another hosting provider 'hebergeons.be':

    Code:
    $ telnet mail.example.be 25
    Trying 87.98.222.197...
    Connected to mail.example.be.
    Escape character is '^]'.
    220 ns1.hebergeons.be ESMTP Postfix
    The domain points to another IP than the one mentioned in the error. So what is my clients MX record pointing to?

    Code:
    $ dig example.be MX
    example.be.           86400   IN      MX      10 mx.scarlet.be.
    It's pointing to Scarlet which is a Belgian ISP.

    and what's the IP for the server?

    Code:
    $ dig mx.scarlet.be.
    mx.scarlet.be.          7200    IN      A       193.74.71.108

    So to me this clearly indicates some serious misconfiguration but then again, I'm no mail guru (yet ).

    Does anyone have a clue why he can receive emails with such a setup and more importantly as he can clearly get them, why I get the above error?

    Any help, explanation, advice is more than welcome. I'm having a hard time sending quotes over gmail!

    Many thanks.
    -eco
    Last edited by ecobrazim; 07-24-2010 at 01:40 AM.

  2. #2
    uxbod's Avatar
    uxbod is offline Moderator
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    Default

    Perhaps your client is receiving email from people on the same server ie. his/her colleagues. Without knowing the true domain etc it is impossible to determine where the error lies.

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