Ubuntu Mail Server – PostFix, DoveCot, RoundCube Authentication Error
by Steve O Hernandez on May.11, 2009, under Technology
I’ve been dealing with this error for the past 2 weeks, trying to authenticate to my IMAP Mail Server (dovecot) over SSL (SASL). I continuously received errors for IMAP authentication. AtMailOpen did not work (and I cannot get it to authenticate correctly). So I tried RoundCube, which looks like a good mesh of functionality and aesthetics.
RoundCube installed great – easy and straight forward. Here is the error I received:
IMAP Error: Authentication for steveoh@thelambdas.com failed (LOGIN): “a001 NO Authentication failed.”
Warning: Cannot modify header information – headers already sent in /var/www/webmail/program/include/rcmail.php on line 951
There is very little to no solutions out there. So I had to play with the configuration file and each argument, one by one (file: main.inc.php in the config directory).
Leave the username_domain field blank. My server, apparently, doesn’t require the full email address, only the user name, for authentication.
From:
$rcmail_config['username_domain'] = ‘example.com’;
To:
$rcmail_config['username_domain'] = ”;
This solved the problem, and I’m able to log in using ONLY the user name (ie. username, not username@example.com).
Good luck.
August 19th, 2009 on 9:03 PM
I love you. I had been playing with RoundCube for a while before I stumbled upon this. Edited out the domain and it works. Thanks!
September 3rd, 2010 on 4:39 PM
Thanks! That did the trick for me too.
October 19th, 2010 on 6:08 PM
Tx mate…. I’ve had to rebuild the server multiple times, checked the roundcube forum …with no luck, googled the web countless times still with no leads till i finally came across u’r “fix”. Finally it has solved the problem…Tx alot.
December 1st, 2010 on 5:26 PM
Didn’t work for me. Stupid message stills on log file…. Any sugestion more?
December 1st, 2010 on 5:27 PM
Did not worked for me.
Any suggestion more…
Regards.
October 4th, 2011 on 12:04 PM
Yeah!!!!!!!!!!!!!!!
It great solution. I have tried so many time, but it not work. when i tried to login it always load message “login fail” or “Your browser does not accept cookies”.
Thanks for your solution.
I am injoy it now.