[Mailman-Users] {Disarmed} Re: Mailman stopworking...help! (Progress?)

Mark Sapiro mark at msapiro.net
Sat Apr 28 22:49:54 CEST 2012

Seun Ojedeji wrote:
>Everything seem to be working now! thanks!  However i will like to know the
>implication of what i have done so far:
>1   Will there be any security treat that i may experience for removing all
>smtpd_recipient_restrictions  ?

You didn't remove smtpd_recipient_restrictions. You just removed it
from main.cf which resulted in Postfix using the default setting which

smtpd_recipient_restrictions = permit_mynetworks,

>2  For mailman to be delivered to memebers at mail.fossfa.net, i had for
>create a user member on the local server, now i will be having over 20
>lists on this server, is this the same procedure i will be taking for all
>the new lists? if yes is there any security/server resource implication to
>doing it this way?

You can to this automatically without creating users as follows:

Add the following to mm_cfg.py

MTA = 'Postfix'

run Mailman's bin/genaliases to update Mailman's data/aliases(.db).
Mailman will continue to maintain this automatically as lists are

add alias_maps = hash:/var/lib/mailman/data/aliases

to Postfix main.cf and reload postfix.

You actually won't be using these aliases to deliver to Mailman because
you will still be delivering via the mailman transport, but this will
define all the list addresses to Postfix as valid local users.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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