R: trouble with post to shared folder

[Francesco Trimarchi]

I just created the account kolab a domain.tld:
When I post a mail to kolab+shared.mailspam a domain.tld I receive this error:

--------------
This is the Postfix program at host groupware.domain.tld.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can delete your own text from the attached returned message.

			The Postfix program

<kolab+shared.mailspam@ domain.tld >: Host or domain name not found. Name
    service error for name= domain.tld type=A: Host not found
-----------
Reporting-MTA: dns; groupware.domain.tld
X-Postfix-Queue-ID: 510126E0B16
X-Postfix-Sender: rfc822; administrator a domain.tld
Arrival-Date: Mon, 11 Sep 2006 09:10:49 +0200 (CEST)

Final-Recipient: rfc822; kolab+shared.mailspam a domain.tld
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; Host or domain name not found. Name service error
    for name=domain.tld type=A: Host not found
-----------

I tried to put the domain.tld ipaddress in the hosts file as groupware, groupware.domain.tld and domain.tld but the error persist.

Any idea?

Thanks in advance

Francesco

-----Messaggio originale-----
Da: GARETTE Emmanuel [mailto:e.garette a atolcd.com] 
Inviato: lunedì 11 settembre 2006 8.35
A: Francesco Trimarchi
Oggetto: Re: trouble with post to shared folder

Francesco Trimarchi wrote:
> Hello to everybody!
>
> I set-up a kolab 2.0.4 server and I have this problem:
>
> When I try to post to a shared folder
> (kolab+shared.mailspam a domain.tld): 
> I received this message:
>
> 'kolab+shared.mailspam a domain.tld 10/09/2006 21.41
> 550 <kolab+shared.mailspam a domain.tld>: Recipient address rejected: User
> unknown in local recipient table
>
> If I display the mailbox list acl (cyradm) I see the listing above
>
> shared.mailspam a domain.tld
> anyone lrswipda
>   
Did you create the kolab a domain.tld account ?