Appending domain to a virtual mailbox lookup

From: Etienne Goyer (etienne.goyervideotron.ca)
Date: Thu Sep 01 2005 - 10:20:35 CDT

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Hi,

I am installing Postfix and Cyrus imapd to serve virtual mail domain. I
am using OpenLDAP as an authentication source and lookup table for Postfix.

For Cyrus imapd virtual domain support, I need to deliver via LMTP to
mailboxdomain. I have configured Postfix to lookup the destination
mailbox as such :

main.cf:
virtual_transport = lmtp:unix:/var/lib/imap/socket/lmtp
virtual_mailbox_domains = example.com, test.com
virtual_mailbox_maps = ldap:/etc/postfix/ldap-virtual-mailbox.cf
virtual_alias_maps = ldap:/etc/postfix/ldap-virtual-mailbox.cf

ldap-virtual-mailbox.cf:
search_base = o=Something
query_filter = mail=%s
result_attribute = uid

The uid attribute in LDAP in unqualified, ie it's "egoyer", not
"egoyertest.com". For correct delivery via LMTP, I would need to have
the domain the mail was originally destined to appended to the uid. As
it is, I can see that the LMTP transport try to deliver mail to
uidmyhostname, but I would like it to deliver to uiddomain.

Exemple : mail received for etienne.goyertest.com, LDAP search return
"egoyer" (the uid attribute), mail delivered to egoyertest.com via LMTP.

Is this possible ? Would there be a better way of achieving the same
result ?

Thanks for any suggestion !

Etienne Goyer

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