Re: a couple of postfix questions

["Volker Tanger" <volker.tanger@detewe.de>]

Greetings!

On Wed, 8 Dec 2004 14:25:05 +1100 Craig Sanders <cas@taz.net.au> wrote:
> if you ignore really stupid annoyances like the fact that it can't
> reject a message at the SMTP level, it *always* accepts and then
> bounces it".

Current mailstats on my private server (postfix) tell me:

	Connections total:         7616
	User unknown:              1260
	RBL-blocked:               1158
	other blocked:              700
	locally delivered:          692

So 50% of all connections break down (probably portscans) before
any SMTP dialogue.
Of the remaining other half, I'm blocking 78% due to RBL, 
user unknown or invalid mail protocol - so very early in
SMTP dialogue. 

If those were accepted (i.e. stored and sent back) I'l fill 
my postmaster box logs with bounces of those bounces (as they
usually use fake sender addresses) in no time.

So rejecting already before DATA statement is a *very* good idea.

Bye

Volker Tanger