Re: OT - massive newsletter

15 msg	Header for message size?
3 msg	address rewriting
2 msg	address_verify_relayhost and relay_domains
5 msg	pflogsumm reports
11 msg	Changing Queue IDs
3 msg	another authentication failure( with sasl)
2 msg	Bypass Spam checks for certain destinations
11 msg	Postfix 'too nice' with content_filter
7 msg	profiling a milter (dkim in particular)
7 msg	spammers tacking on headers how to block?
7 msg	[Fwd: Re: RFC 821]
1 msg	Re:
4 msg	(No Subject)
2 msg	RFC 821
7 msg	Suspending mail delievery to a specific user

Re: OT - massive newsletter
\ Zbigniew Szalbot (19 Sep 2007)
. \ Ralf Hildebrandt (19 Sep 2007)

12 msg	List management issue: possibly Off Topic
2 msg	bad protocol error Testing SASL configuration
2 msg	warning: smtpd_sasl_auth_enable is true, but SA...
1 msg	Quota Problem

Subject:	Re: OT - massive newsletter
Group:	Postfix-users
From:	Ralf Hildebrandt
Date:	19 Sep 2007

* Zbigniew Szalbot <zszalbot>:
> Hello,
>
> 2007/9/19, Ralf Hildebrandt <Ralf.Hildebrandt>:
> > Also, it (Postfix) has several workaround that enable you to send mail to system
> > behind CISCO PIX firewalls.
>
> Forgive me if this is something obvious. I am relatvely new to the
> list. What does it mean it has workarounds for CISCO firewalls?

The CISCO PIX has a SMTP protocol fixup option that has had several
errors. Given the reluctance of real customers to make upgrades on
anything, you'll encounter many br0ken PIXens during normal operation:

# fgrep "postfix/smtp[" /var/log/mail.log |wc -l
40359
# fgrep "PIX workarounds" /var/log/mail.log |wc -l
76

That 1.8 per thousand connections.

> Does it mean that postfix can do something other MTAs (sendmail, exim) cannot?

I'm not sure, but they should be affected by the same problems.

--
Ralf Hildebrandt (Ralf.Hildebrandt) plonk
Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155
http://www.arschkrebs.de
Quit trying to hurt (slow down) millions abusive IPs. It's a waste of
time. Your MX is vastly outnumbered and is pissing into a hurricane.