[Dovecot] strange behavior with virtual accounts and imap

[vladi]

  On 10/13/2010 02:36 PM, Charles Marcus wrote:
> Please don't top-post...
>
> On 2010-10-13 7:15 AM, vladi wrote:
>> info@ is postfix alias, all mail send to info@ is distributed to all
>> other accounts. info@ doesn't have email in Maildir Users have
>> configured POP3 account for sending email via info@ every user have
>> configured IMAP account for his email and POP3 for info@ but via pop3
>> cannot receive emails for info@ because postfix doesn't store email
>> in info's Maildir It's a complete mistery.
> Doesn't sound mysterious to me. If info@ is *only* an alias and does
> *not* have its own mailbox, then each user that is included in the alias
> list should receive a copy of the email in their own Inbox.
>
> In other words, aliases are not user accounts (local or virtual) and
> don't have mail delivered, so there is nothing to retrieve from 'info's
> Maildir'...
>
>> I've change the system to courier and it works fine. The Q. here is
>> why Dovecot behaves strange
> Courier can be installed as either just a standalone POP/IMAP server, or
> as a complete solutions (it has an MTA component as well).
>
> It sounds to me like you are confused on the MTA side, and you somehow
> confirgured Courier to deliver mail to BOTH an info@ user account *and*
> *also* alias it to other users.
>
Yes, they receive a copy via postfix, but if someone mark the message 
for deletion, every other account downloads his copy from his own 
independent maildir as if himself downloaded it earlier and mark it for 
deletion. It's misbehavior.

Example: I send email to info@ with subject: 'new offer': jane and john 
receive both a copy. Jane with outlook download her mail in the morning 
and delete the message. outlook mark it for deletion and leave it in her 
maildir. john later with his outlook is downloading his mail and the 
same message (his copy) is downloaded as readed and marked to be deleted 
and not as new (as it supposed to be). they don't share same or any imap 
directory. the only common between them is info@ as pop3 for sending 
emails from behalf of info at . but in this pop3 account postfix doesn't 
store anything. its completely empty.