[Dovecot] strange behavior with virtual accounts and imap

[vladi]

  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. I've change the system to courier and it works 
fine. The Q. here is why Dovecot behaves strange

On 10/11/2010 11:48 PM, Charles Marcus wrote:
> On 2010-10-11 3:36 PM, vladi wrote:
>> There is one group account named info, all the mail is forwarded to
>> every other account.
> Here, this sounds like info@ is a 'list'...
>
>> Users download their mail via Outlook (2003, 2007)
>> with imap.
> IMAP protocol is where mail is stored on the SERVER... yes, when an IMAP
> client connects, a COPY is downloaded locally for reading, but the
> server retains the main/working copy.
>
>> If someone downloads email send to info and delete it after that.
>> Outlook stoke the message and doesn't delete it immediately, thats
>> normal. But if later someone else downloads his mail and it have
>> received the same letter to info. The message appear as if it's
>> already deleted by that user. But is supposed to be unreaded. I cant
>> find any info why is this happening. Please help
> It sounds like all of them are simply talking to the same IMAP account
> (info@) - in which case, that's the way IMAP works. If multiple people
> are connecting to the same account (or shared folder) over IMAP, and one
> person deletes a message, it is deleted for all...
>
> Sounds like you want POP accounts, not IMAP...
>