[ILUG] Postfix Tips And Tricks

[Philip Reynolds]

Conall O'Brien <conall at conall.net> 88 lines of wisdom included:
> After digging around postfix.org and google a little bit, I know I want
> to implement virtual mappings and aliases for the first item on my list.
> Problem is, after following these instructions [1], and adding these
> lines to my main.cf:
> 
> virtual_mailbox_domains = a.example.net, b.example.net
> virtual_mailbox_maps = hash:/etc/postfix/virtual/mailboxes
> virtual_alias_maps = hash:/etc/postfix/virtual/maps

Ordinarily, you're going to want to set more than that including:

	virtual_mailbox_base
	virtual_uid_maps
	virtual_gid_maps

This is the specific part of the document you want:

	http://tardis.linux.ie/2228/www.porcupine.org

assuming you're trying to use domains with non-UNIX accounts.

Make sure you're using a relatively up-to-date Postfix (2.0+). Use
``postconf -d mail_version'' to get the version.

> Postfix won't accept any mail (citing error 554 - relay access denied), 
> even to $mydestination DNS records. maps is an empty file, mailboxes 
> is simply a catch-all setup for a.example.net and b.example.net

You need to start looking at your maillog (or mail.log) file in
/var/log. 



> My other, more trivial question is regarding mailbox extensions. On my 
> Red Hat box and numerous Debian boxes, I've set 
> 
> $mailbox_delimiter = +

The parameter in question is

	recipient_delimiter

no '$' and replace 'mailbox' with 'recipient'.

	# postconf -n | grep delimiter
	recipient_delimiter = +


-- 
Philip Reynolds                      | RFC Networks Ltd.
philip.reynolds at rfc-networks.ie      | +353 (0)1 8832063
http://people.rfc-networks.ie/~phil/ | www.rfc-networks.ie