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#1 2016-03-09 18:04:20

n0vember
Member
Registered: 2013-07-01
Posts: 9

dovecot as imap proxy to exchange

Hi !

Has anybody used dovecot as an imap proxy to exchange server ?

I used this howto : http://wiki2.dovecot.org/HowTo/ImapcProxy and changed server and certs. Dovecot service started and I used the test command :

openssl s_client -connect 127.0.0.1:143 -starttls imap

Answer from server is as expected and so I attempt a bad login :

01 LOGIN username bad password

It is still as expected :

01 NO [AUTHENTICATIONFAILED] Authentication failed.

And I get no more answer. I never get the CAPABILITY line.

when using the good password, I see in the logs :

mars 09 18:58:24 xxx dovecot[8055]: imap-login: Login: user=<xxx>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=9172, TLS, session=<gTStcaEtYOV/AAAB>

But then again, it gets stuck and no capability line.

Each time I get out after a 30 seconds timeout.

I see on the web that there is a proxy_nopipelining option to add to the passdb section, which could use in my case. But it is very poorly documented and I did not managed to set it up.

Dovecot version is 2.2.21.

Any clue ?

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