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Hotmail e-mail problems - 550 unknown user

Discussion in 'E-mail Discussions' started by cretu, Jul 18, 2006.

  1. cretu

    cretu Well-Known Member

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    Hi,

    Our users have reported problems with sending e-mail messages to any address at HotMail.com. Apparently, it does happen on several cPanel/Exim servers. The logs are reporting:

    2006-07-18 10:36:36 1G2qgb-0008QM-SE ** hotmailuser@hotmail.com R=lookuphost T=remote_smtp: SMTP error from remote mail server after RCPT TO:<hotmailuser@hotmail.com>: host hotmail.com [69.93.140.34]: 550 unknown user

    Now, when sending a test message FROM HotMail account:

    2006-07-18 10:41:17 H=(bay0-omc2-s38.bay0.hotmail.com) [65.54.246.174] sender verify fail for <hotmailuser@hotmail.com>: response to "RCPT TO:<hotmailuser@hotmail.com>" from hotmail.com [69.93.140.34] was: 550 unknown user
    2006-07-18 10:41:17 H=(bay0-omc2-s38.bay0.hotmail.com) [65.54.246.174] F=<hotmailuser@hotmail.com> rejected RCPT <ourlocaluser@ourlocaldomain.com>: Sender verify failed

    It does not matter to which HotMail user the e-mail is sent - the error still is the same.

    Does anyone experience the same situation?

    Cretu
     
  2. sparek-3

    sparek-3 Well-Known Member

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    Looks like there is an account setup with a domain name hotmail.com on the 69.93.140.34 server. You may want to investigate this.
     
  3. cretu

    cretu Well-Known Member

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    Sparek-3,

    That was it - the "hotmail.com" was setup locally - strange since we have tweak "Prevent users from parking/adding on common internet domains. (ie hotmail.com, aol.com)" enabled.

    Sending TO "hotmail" account now works but FROM still returns error:

    2006-07-18 11:41:14 H=bay0-omc1-s34.bay0.hotmail.com [65.54.246.106] F=<hotmailuser@hotmail.com> rejected RCPT <localuser@localdoimains.com>: Sender verify failed

    I have noticed that e-mail will go through only when disabling Exim option "Verify the existance of email senders". But, is it is safe to have it disabled?

    Thank you.
     
  4. bmcpanel

    bmcpanel Well-Known Member

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    Disable and you will get more spam.
     
  5. mambix

    mambix Member

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    in exim.conf, add the instruction "interface"

    remote_smtp:
    driver = smtp
    interface = IP-SERVER

    restart exim

    Works 100%

    becareful if you modify manually exim.conf, you will loose the modification in the next cpanel upgrade
     
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