[Mailman-Users] Postfix and Mailman with virtual hosting

Matthew Gray matt at solis.co.uk
Wed Aug 10 15:18:07 CEST 2005

Hi List,

I'm in need of some help about Postfix and Mailman : specifically
virtual hosting and integrating Postfix and Mailman

I'm got Postfix (2.15, from the Fedora Core 3 package) running with 
virtual email hosts: this works fine, with the following in main.cf :

alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
virtual_alias_maps = hash:/etc/postfix/virtual

(there's a lot of other stuff obviously - but i think these are the
key lines)

I can receive mail on all the domains that point to the machine. At 
the moment /etc/postfix/virtual is just set up to forward 
postmaster@[virtual_domain] to root, and bounce everything else.

I have also succesfully set up Mailman (2.1.6 - compiled from 
source), but without virtual hosting: everything is just running as

The problem is when I try to make the Mailman write virtual alias 
maps for postfix. I added the following to the virtual_alias_maps 
variable in main.cf :


and added the relavent domains to the 
POSTFIX_STYLE_VIRTUAL_DOMAINS constant in mm_cfg.py. I 
also added them with the add_virtualhost() function in the same file.

The problem is, when i run /usr/local/mailman/bin/genaliases, it 
does not write the virtual-mailman and virtual-mailman.db as I think 
it should. No error is reported, the files just aren't there. And further
to that, when the line: hash:/usr/local/mailman/data/virtual-mailman
is in main.cf, it breaks the virtual hosted email completely: even the
postmaster@[virtual_domain] addresses that should not be 
affected by Mailman.

I'd really appreciate a few pointers, if any of you have time.




Matthew Gray


T: (0114) 258 5550
F: (0114) 258 5574

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