users cannot login

[McDade, Andy]

I need some help tracking down an issue where my first setup user can 
log in to roundcube, but any new users I set up cannot.
I get a login denied error can the following in the maillog (this is a 
Centos 7 system with the latest Kolab 3.4).

Jul 13 13:34:34 kolab imap[20634]: starttls: TLSv1 with cipher 
ECDHE-RSA-AES256-SHA (256/256 bits new) no authentication
Jul 13 13:34:34 kolab imap[20634]: SASL Password verification failed
Jul 13 13:34:34 kolab imap[20634]: badlogin: localhost [::1] PLAIN 
[SASL(-13): authentication failure: Password verification failed]


and this in the roundcube logs:

[13-Jul-2015 13:34:37,000000 +0100]: <8eo5e7v4> Failed login for 
user at domain.co.uk from X.x.x.x(X-Real-IP: x.x.x.x,X-Forwarded-For: 
x.x.x.x) in session 8eo5e7v42vu7h78qi3o3ulrkn4 (error: 0)

[13-Jul-2015 13:34:37,000000 +0100]: <8eo5e7v4> IMAP Error: Login failed 
for user at domain.co.uk from x.x.x.x(X-Real-IP:  x.x.x.x,X-Forwarded-For: 
x.x.x.x). AUTHENTICATE PLAIN: authentication failure in 
/usr/share/roundcubemail/program/lib/Roundcube/rcube_imap.php on line 
198 (POST 
/roundcubemail/4651062b87170bb3/?_task=login?_task=login&_action=login)


Where do I start? The ldap contains an SSHA encrypted password, and 
checking this using Apache Studio seems to confirm it correct. I have 
tried changing the password in the Kolab web admin and directly in ldap, 
to no avail.

I see there was a problem with kolab 3.2 that had these symptoms, but It 
was fixed in that version and shouldn't be in 3.4, at least that's how I 
read it.

Any help appreciated,
Andy

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