Sandro Tosi
2012-May-24 15:28 UTC
[Dovecot] AUTH PLAIN fails while AUTH LOGIN succeeds with Exim -> Dovecot SASL auth
Hello, we're trying to setup a platform with authenticated SMTP with exim and relying on dovecot as auth agent. We've read http://wiki2.dovecot.org/HowTo/EximAndDovecotSASL and so made the changes mentioned there, also setting auth_mechanisms = plain login in conf.d/10-auth.conf . With this setup, we're able to use AUTH LOGIN method on an SMTP session, but using AUTH PLAIN fails. What we receive in the SMTP session is: auth plain `echo -e -n `\0user\0password' | mimencode` 535 Incorrect authentication data (it's actually the output of that command that we put there), and in the dovecot log we see: 2012-05-24 15:04:20 auth: Debug: client in: AUTH 1 PLAIN service=smtp secured rip=127.0.0.1 lip=127.0.0.1 nologin resp=<hidden> 2012-05-24 15:04:20 auth: Info: plain(?,127.0.0.1): invalid input Do you know where we can look to resolve this problem? If you need any further information/test feel free to ask. Thanks in advance? -- Sandro Tosi Product Engineer Shared Hosting Products R&D | Dada.pro eml sandro.tosi at register.it
Sandro Tosi
2012-May-29 11:56 UTC
[Dovecot] AUTH PLAIN fails while AUTH LOGIN succeeds with Exim -> Dovecot SASL auth
On 05/24/2012 05:28 PM, Sandro Tosi wrote:> With this setup, we're able to use AUTH LOGIN method on an SMTP session, > but using AUTH PLAIN fails.It turned out to be a problem in the encoding of the AUTH PLAIN string. Sorry for the noise, -- Sandro Tosi Product Engineer Shared Hosting Products R&D | Dada.pro eml sandro.tosi at register.it
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