Re: how to reduce postfix log file size and number of spam bounces..

Stavros Febodeloulos wrote:

> I've setup a postfix+amavisd-new+spamassassin+cyrus system, for about a
> thousand mailboxes and several virtual domains. It is performing
> reasonably well, but I notice that postfix generates a large logfile,
> with several lines for each message. Is there a config option to reduce
> postfix logging to the bare minimum ? Amavisd has one, but postfix..

What does

postconf -n | grep notify_classes

produce? Remove the undesired classes in main.cf and reload.

> Also, my mail queue is clogged with thousands of spam bounce messages -
> I've got a lot of spam: I believe I've configured correctly my site,
> having passed all the open relay tests I could find. I use these rbls:
>
> reject_rbl_client relays.ordb.org,
> reject_rbl_client opm.blitzed.org,
> reject_rbl_client list.dsbl.org,
> reject_rbl_client sbl.spamhaus.org,
> reject_rbl_client cbl.abuseat.org,
> reject_rhsbl_sender rhsbl.sorbs.net,
> reject_rhsbl_client rhsbl.sorbs.net,
> permit
>
> I also use the usual body,header,sender,recipient checks to disallow
> malformed addresses, 'you are me', and some attachment types.
> What can I do to free the queue from bounces to

What does

> faked-but-syntactally-regular spammer's addresses to nonexistant
> mailboxes on my site ?

this mean exactly, can you be more specific? I don't know whether you're
talking about spoofed freemails, if so see
http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt otherwise it might
be a check_recipient_access access map you're after (assuming your
Postfix is on the perimeter and can't validate the names of users during
the transaction with the remote host).

David

> I've tried to reduce to one day the queue life and to reduce the bounced
> message size, without great results.
>
>
>
>


--
Commercial OS breeds commerce, whereas free OS breeds freedom,
the only thing more dangerous and confusing than commerce.
-- Michael R. Jinks, redhat-list, circa 1997