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I have Ubuntu 12.04 LTS. I want to use the Postfix as relay to a Microsoft Exchange server. I send a mail to my Postfix, it connects to the Exchange, authenticates and sends mail. I have an trouble with NTLM authorisation. When I sent mail I see this message into the Postfix log:

warning: mail.example.com [192.168.xxx.xxx]:25 offered no supported AUTH mechanisms: 'NTLM'

Into the document Postfix SASL Howto is written to rebuild the SASL module with NTLM support option. But I don't want rebuild modules. I think the Ubuntu repository has packages with NTLM support enabled.

Postcong output:

$ postconf -a
cyrus
dovecot

Anybody know how to solve my trouble?

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  • Can you add the output of postconf -A to the question?
    – Anders F. U. Kiær
    Jan 30, 2014 at 1:24

1 Answer 1

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Did a quick dive, and at first glace doesn't it look like cyrus is compiled with support for NTLM. Couldn't see the ntlm library in the ubuntu package, tho it is still possible it is built with NTLM and statically linked.

Yes, here is a solution but it do include to compile cyrus from source. But ofc. you will have to adopt it to fit the version of postfix\cyrus you are targeting.

Feel free to try to compile the support, and update your question with issues you are running into. Good Luck.

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