cyrus + postfix problem

[Lukasz Michalski]

Hi,

I managed to setup postfix + cyrus with virtual domain support.
Everything works besides sending emails to multiple addresses in the
same domain.

When I send such email it *gets delivered*, but sender recieves bounce
with info:

The Postfix program

<globus at zork.pl>: data format error. Command output: : Mailbox does not
exist

<zork at zork.pl>: data format error. Command output: : Mailbox does not
exist

This is my maillog:

Apr 27 13:17:14 black postfix/smtp[19681]: 79932380199A:
to=<globus at zork.pl>, relay=127.0.0.1[127.0.
0.1], delay=0, status=sent (250 2.6.0 Ok, id=19582-04, from
MTA([127.0.0.1]:10025): 250 Ok: queued a
s B2014380199C)
Apr 27 13:17:14 black postfix/smtp[19681]: 79932380199A:
to=<zork at zork.pl>, orig_to=<lm at zork.pl>, re
lay=127.0.0.1[127.0.0.1], delay=0, status=sent (250 2.6.0 Ok,
id=19582-04, from MTA([127.0.0.1]:1002
5): 250 Ok: queued as B2014380199C)
Apr 27 13:17:14 black postfix/qmgr[3780]: 79932380199A: removed
Apr 27 13:17:14 black postfix/pipe[19686]: B2014380199C:
to=<globus at zork.pl>, relay=cyrus, delay=0,
status=bounced (data format error. Command output: : Mailbox does not
exist )
Apr 27 13:17:15 black postfix/pipe[19686]: B2014380199C:
to=<zork at zork.pl>, relay=cyrus, delay=1, st
atus=bounced (data format error. Command output: : Mailbox does not exist )
Apr 27 13:17:15 black postfix/cleanup[19680]: 01346380199A:
message-id=<20060427111715.01346380199A@
black.zork.pl>

It looks like some cyrus bug. Mail alias lm at zork.pl is properly
rewritten as zork at zork.pl. Message is added to cyrus mailbox. Why
postfix gets Mailbox does not exits here?

It happens only if I send email to two perosons (maybe more). When I
sent to one receipent everything works ok.

My cyrus config:
configdirectory: /var/lib/imap
partition-default: /var/spool/imap
admins: root
allowanonymouslogin: no
allowplaintext: 1
sieveuserhomedir: no
sievedir: /var/lib/imap/sieve
hashimapspool: yes
umask: 077
quotawarn: 90
timeout: 30
poptimeout: 10
defaultacl: anyone lrs
autocreatequota: 16000
sasl_pwcheck_method: auxprop
unixhierarchysep: yes
altnamespace: yes
defaultdomain: black.zork.pl
virtdomains: userid

I am using cyrus-imap 2.2.12

Thanks for any info,
Łukasz