[Dovecot] Deliverm, vpopmail, and valias

[John Peacock]

I'm in the final stages of testing my e-mail server to come and I seem 
to have hit a roadblock.

One option of current vpopmail is to store all aliases in a valias 
table, that looks like this:

+-------------+----------+------+-----+---------+-------+
| Field       | Type     | Null | Key | Default | Extra |
+-------------+----------+------+-----+---------+-------+
| alias       | char(32) | NO   | MUL |         |       |
| domain      | char(64) | NO   |     |         |       |
| valias_line | text     | NO   |     |         |       |
+-------------+----------+------+-----+---------+-------+

where valias_line could be either an e-mail address (preceded by an 
ampersand) or a command (piped to vacation for example).

I have already accepted a message for an aliased address, but the MTA 
isn't going to be rewriting the envelope address, so how can I get 
dovecot's deliver to dereference the alias and deliver to the correct 
Inbox?  Because of the number of other hops[1] that the message is going 
through, I don't want to rewrite the destination address unless I really 
have to, but if that is the only option, that is what I'll have to do.

Thoughts?

John

1) inbound e-mail hits a qpsmtpd instance which validates e-mails using 
several different filtering techniques.  Next the mail gets fed to a 
dspam appliance running two Postfix queues (one before dspam and one 
after).  Mail that isn't quarantine by dspam gets sent to the delivery 
server (currently running qmail) and delivered to the final destination 
(modulo sieve rules under deliver).  The only place I could conceivably 
rewrite the address would be the second Postfix queue.

-- 
John Peacock
Director of Information Research and Technology
Rowman & Littlefield Publishing Group
4501 Forbes Boulevard
Suite H
Lanham, MD  20706
301-459-3366 x.5010
fax 301-429-5748