SMTP authentication not working

James R. Stevens jstevens at athensdistributing.com
Mon Feb 19 16:36:01 CET 2007


I agree with Brett,
Creating the accounts sounds like the step your missing. Several years
ago we setup an smtp AUTH environment and although the password
mechanism was different we DID have to create the accounts that were
used by SMTP AUTH.

 
> 
> Mike,
> 
> Thanks for getting back to me. I have changed the
> sections of my 
> sendmail.mc file to be the same as yours, and
> rebuilt sendmail.cf, and 
> restarted MailScanner. Still doesn't work.
> 
> I also tried changing my /etc/sysconfig/saslauthd
> file to have 
> "MECH=pam" instead of "MECH=shadow" and restarted
> saslauthd, but still 
> same problem.
> 
> I've tried running tcpflow and checking further to
> see what's going on, 
> and Thunderbird actually tries "AUTH CRAM-MD5" then
> "AUTH PLAIN" then 
> "AUTH LOGIN" but each time gets "535 5.7.0
> authentication failed". I've 
> then taken the base64 strings and decoded them to
> see if the login/pass 
> is the same (it is), but still not working.
> 
> What else could it possibly be?
> 
> Thanks,
> Chris

Hello,
On my CentOS 4.4 machines I use saslpasswd2 to create
users.  Your maillog seems to indicate it is looking
for something in /etc/sasldb2.  What do you get from
the command sasldblistusers2?
Perhaps you need to recreate the userlist using
saslpasswd2 if you did not use that the first go
'round.

hth,
Brett



 
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