problems with virtual domains and sasl under Debian 4

[Falko Zurell]

Hello List_members,

I'm using a Debian Linux 4 and the provided Cyrus (2.2.13) and SASL  
packages from Debian. I've configured my Postfix MTA to use virtual  
domains with the SASL library as authentication base. Postfix works  
fine for me but Cyrus makes some trouble.

I can't authenticate on the Cyrus IMAPD with my virtual domain name.  
When I try to login with "username at domain" on cyrus imapd  
authentication fails. When I add a user to the saslpasswd file with  
the default domain (eq. localhost) I can authenticate on IMAPD.

my imapd.conf ist this:

configdirectory: /opt/data/cyrus/lib/
defaultpartition: default
partition-default: /opt/data/cyrus/mail
partition-news: /opt/data/cyrus/news
newsspool: /var/spool/news
altnamespace: no
unixhierarchysep: yes
reject8bit: yes
lmtp_downcase_rcpt: yes
admins: cyrus
allowanonymouslogin: no
popminpoll: 1
autocreatequota: 0
umask: 077
sieveusehomedir: false
sievedir: /opt/data/cyrus/sieve
hashimapspool: true
allowplaintext: no
sasl_mech_list: PLAIN
loginrealms: domain.com
virtdomains: on
defaultdomain: domain.com
sasl_pwcheck_method: saslauthd
sasl_auxprop_plugin: sasldb
sasl_auto_transition: yes
tls_cert_file: /etc/ssl/certs/post.domain.com.cert.pem
tls_key_file: /etc/ssl/private/post.domain.com.key.pwless.pem
tls_ca_path: /etc/ssl/certs
tls_session_timeout: 1440
tls_cipher_list: TLSv1+HIGH:!aNULL:@STRENGTH
lmtpsocket: /var/run/cyrus/socket/lmtp
idlemethod: poll
idlesocket: /var/run/cyrus/socket/idle
notifysocket: /var/run/cyrus/socket/notify
syslog_prefix: cyrus

Can someone give me a hint where to look? I now this must work because  
I've got it running on a SuSE Linux box with almost the same  
configuration. I can't find the mistake by myself at the moment.


Thanks and kind regards

Falko Zurell

/i-d media AG

Ohlauer Straße 43
D-10999 Berlin

www.idmedia.com

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