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What's the best way to set up NTLM authentication with Exchange?

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  • tmac
    Here s my problem... I currently connect to an exchange server to relay mail. and it works But, apparently, it only works if I send email to the default domain
    Message 1 of 2 , Mar 3, 2013
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      Here's my problem...

      I currently connect to an exchange server to relay mail. and it works
      But, apparently, it only works if I send email to the default domain there...

      i.e. I can send to mine.email.com but not to yours.email.com

      We get the infamous 5.7.1 error.

      If I connect to the same exchange server with a thunderbird client,
      I get the same result when I use no authentication.

      However, when I use NTLM/STARTTLS and my username, it allows
      me to send just fine.

      So, How do I setup my postfix to use NTLM/STARTTLS with my username?

      Thanks.

      --tmac

      Tim McCarthy
      Principal Consultant

                

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    • Reindl Harald
      ... [root@localhost:~]$ rpm -qa | grep ntlm cyrus-sasl-ntlm-2.1.23-31.fc17.x86_64
      Message 2 of 2 , Mar 3, 2013
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        Am 03.03.2013 13:09, schrieb tmac:
        > So, How do I setup my postfix to use NTLM/STARTTLS with my username?

        [root@localhost:~]$ rpm -qa | grep ntlm
        cyrus-sasl-ntlm-2.1.23-31.fc17.x86_64
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