imapd dies when connecting with Mozilla-1.6beta Mail IMAP account

[Hajo Beckefeld]

Hi List!

I'm running a cyrus IMAP server 2.1.16 on an Linux 2.2.25 machine.
When I try connect from an Mozilla 1.6/1.7 IMAP client, I can't 
establish the connection. The log just says:

Jan  4 13:52:43 jinn master[12215]: about to exec /usr/cyrus/bin/imapd
Jan  4 13:52:43 jinn imap[12215]: executed
Jan  4 13:52:43 jinn imapd[12215]: accepted connection
Jan  4 13:52:50 jinn master[2293]: process 12215 exited, signaled to 
death by 11

With Mozilla-1.5 Mail everything works fine!?!


Jan  4 14:21:58 jinn master[12230]: about to exec /usr/cyrus/bin/imapd
Jan  4 14:21:58 jinn imap[12230]: executed
Jan  4 14:21:58 jinn imapd[12230]: accepted connection
Jan  4 14:22:03 jinn imapd[12230]: login: 
luke.beckefeld-online.de[192.168.1.20] hajo plaintext
Jan  4 14:22:04 jinn imapd[12230]: seen_db: user hajo opened 
/var/imap/user/h/hajo.seen
Jan  4 14:22:04 jinn imapd[12230]: open: user hajo opened INBOX


Here is my configure command for cyrus imapd:

./configure  --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc 
--localstatedir=/var --infodir=/usr/share/info --mandir=/usr/share/man 
--with-auth=unix --with-sasl=/usr/lib --disable-krb 
--with-cyrus-user=cyrus --with-cyrus-group=mail --enable-listext 
--enable-annotatemore --enable-murder

and my imapd.conf

configdirectory: /var/imap
partition-default: /var/spool/imap
servername: mail.beckefeld-online.de
admins: cyrus
allowanonymouslogin: no
 

# certificate key files
tls_cert_file: /var/imap/server.pem
tls_key_file: /var/imap/server.pem
 

# The  mechanism used by the server to verify plaintext
# passwords.  Possible values  also  include  "sasldb",
# "kerberos_v4", "passwd", and "shadow".
#sasl_pwcheck_method: saslauthd
sasl_pwcheck_method: saslauthd

Thanks a lot for any kind of hint!
Hajo

Btw: Happy new Year!