Solve roundcube login issues

[lferran]

Problems:

• When users login only using their userid, the roundcube treats the user as <userid>@localhost instead of @orxonox.net

• This causes that the user, then, can't send any email.

[lferran]

Dovecot drops the domain part of the username input given by roundcube ⇒ If the input is lferran@… authentication is only done with lferran.

The problem was solved by modifying the ldap filter in the dovecot configuration. In /etc/dovecot/dovecot-ldap.conf.ext:

# pass_filter = "(&(objectClass=PostfixBookMailAccount)(uniqueIdentifier=%n)) # prev. filter

pass_filter = "(&(objectClass=PostfixBookMailAccount)(uniqueIdentifier=%n)(mail=%u))"

Now, when roundcube has a new user@… + password to validate:

1. Sends the credentials to Dovecot
2. Dovecot performs a ldap bind
3. Dovecot searches for user@… in the ldap directory and compares the password

More information about how this issue has been solved ​here.

[lferran]

Best and final solution:

modify roundcube configuration parameter that acts as default_domain in case the user does not write it in the login form:

$rcmail_config['username_domain'] = 'orxonox.net';