is it possible - username aliases

[Wojciech Puchar]

i already have quite large dovecot installation with multiple domains but 
with users handled via unix passwd.

Domain name mapping in both directions is done by sendmail, and mail 
delivery by procmail to Maildir format - one account per user. this 
accounts are often used for more than mail.

So for example john smith have email john at foo.pl and unix username 
foo-john.

His imap client and smtp client is configured to use login foo-john and 
email address john at foo.pl

Everything works flawlessly.


But i will have few new users that insist of being able to login as 
someone at somewhere.pl


Can i have something similar to sendmail method in dovecot - an alias 
table like

someone at somewhere.pl some-unix-account

For this few users and have everything like it is now?