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Old 24th March 2013, 14:38
wck wck is offline
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Default [Solved] smtp sasl authentication failure, no explanation


Running ISPconfig 3 on Ubuntu Server 12.04 LTS (Perfect server guide Howto)
ISPconfig is up to date and I allowed it to reconfigure services.

I cannot send emails through my server. After trying to connect via Gmail, the logs show :

Mar 24 13:14:07 servername postfix/submission/smtpd[16901]: connect from[]
Mar 24 13:14:07 servername dovecot: auth-worker: mysql(localhost): Connected to database dbispconfig
Mar 24 13:14:09 servername postfix/submission/smtpd[16901]: warning:[]: SASL PLAIN authentication failed: 
Mar 24 13:14:09 servername postfix/submission/smtpd[16901]: disconnect from[]
After a lot of Googling I see there is generally an explanation after "authentification failed: " but here, there is none.

Something else I've tried to check saslauthd :

testsaslauthd -u -p password -s smtp
0: NO "authentication failed"
Any help would be greatly appreciated.

Last edited by wck; 24th March 2013 at 17:48.
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