SASL PLAIN authentication failed

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#1 Fri, 09/03/2010 - 23:17
zombiitv

SASL PLAIN authentication failed

I have tried off and on for several months now to get this fixed to no avail. Here's the details OS CentOS 5.2 User names with @ saslauthd flag -r set I can log in just fine with webmin I get the SASL PLAIN authentication failed error when I use thunderbird.

Running EHLO localhost 250-domain.tld gives me this: 250-b256.domain.tld 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH PLAIN 250-AUTH=PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN

I have read somewhere that the AUTH=PLAIN needs to be AUTH=LOGIN PLAIN

Any suggestions would be more than welcome...I need to get this fixed

Thanks

Fri, 09/03/2010 - 23:31
andreychek

Howdy,

Make sure that in /etc/dovecot/dovecot.conf, that "disable_plaintext_auth" is set to "no". Normally, that line is commented out by default, but setting it to "no" should allow plain text authentication.

-Eric

Sat, 09/04/2010 - 13:26
zombiitv

set that to no and still getting SASL PLAIN authentication failed in the mail log

Any other ideas?

Any chance you could log in and troubleshoot? I've been at this so long that I just want it fixed

Thanks

Tue, 09/14/2010 - 07:47 (Reply to #3)
aplima

Try to use this format at smtp server definitions under your email program:

user-domain.tld

And let me know if your email now is sent.

I came across this solution, but I'm trying to find a way to the server accept the format: user@domain.tld when sending emails.

All help is appreciated!

Sun, 09/05/2010 - 22:52
andreychek

Hrm, I think I read through your post too fast, as we should be looking at Postfix/saslauthd rather than Dovecot.

What do you get if you type these two commands:

  1. ps auxw | grep saslauth

  2. cat /usr/lib/sasl2/smtpd.conf

Thanks,

-Eric

Mon, 09/06/2010 - 16:44
zombiitv

  1. root 13850 0.0 0.0 46740 400 ? Ss Sep03 0:00 /usr/sbin/saslauthd -r -m /var/run/saslauthd -a pam root 13851 0.0 0.0 46740 168 ? S Sep03 0:00 /usr/sbin/saslauthd -r -m /var/run/saslauthd -a pam root 13852 0.0 0.0 46740 164 ? S Sep03 0:00 /usr/sbin/saslauthd -r -m /var/run/saslauthd -a pam root 13853 0.0 0.0 46740 164 ? S Sep03 0:00 /usr/sbin/saslauthd -r -m /var/run/saslauthd -a pam root 13854 0.0 0.0 46740 164 ? S Sep03 0:00 /usr/sbin/saslauthd -r -m /var/run/saslauthd -a pam root 20657 0.0 0.0 61152 736 pts/0 S+ 14:41 0:00 grep saslauth

  2. mech_list: PLAIN LOGIN

Sun, 08/05/2012 - 08:35
adrianmak

I'm having this issue too.

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