Les Mikesell wrote:
On Wed, 2006-08-23 at 23:22, Feizhou wrote:
YEAH ! Flamewar ! Yohooooooooooooo!
haha. well, i guess having had to immediately upgrade more than a dozen
boxes running sendmail whenever a remote exploit was found kind of made
me rather unwilling to deal with it anymore after the peace and quiet I
get from running postfix. Also, not having to decipher them sendmail
rulesets and create new ones were a relief. Then there was the
instability of milter to contend with...
I guess that is all long past now is it?
Unless typing 'yum update' to pick up fixes that have
been needed less often than in the Linux kernel for the last
few years is a problem for you...
sorry, it was a patched sendmail and those boxes were FreeBSD then.
No one edits sendmail.cf directly anymore and milter has been
stable for about as long as postfix has existed at all.
Oh yeah? Hit SPAM-L for a bunch of great sendmail admins that do just
that and I contest milter being stable as long as postfix has existed
since we had major problems with sendmail + milter all through 8.11.x to
8.12.10 and finally replaced it with postfix at my previous place of work.
Postfix still doesn't have a way to let you hook user
defined scanners running under a different uid to run
in realtime during the smtp conversation, does it? MimeDefang
lets you do anything you can describe in perl and return the response
through the milter interface for various operations
before the mail has been acknowledged as accepted.
Okay, it does not provide a hook but it can be done via a smtp
passthrough proxy. milter is coming soon.
postfix does provide content inspection before queueing via perl regex
and if needed, you stuff the mail through smtp to a filter that can
either run on the same box or run on another box under whatever uid you
wish and return appropriate response before queueing the mail.
Let's get one thing straight. I have not used exim yet but I dare say
that sendmail is the most flexible mta program available thanks to its
ruleset feature. However, this power is limited to those who can think
in sendmail rulesets and given your comment about nobody edits
sendmail.cf anymore, I guess it shows how hard it is to get mastery of
sendmail's power.
As for mimedefang, qmail lets you do anything that can be described in
perl, shell, C, python, whatever you fancy in fact and reject at the
smtp level too since you can replace qmail-queue or put a filter before
qmail-queue.
I am sorry, but one can get the functionalily of sendmail sans the
neverending list of security updates and that is on two other mta software.
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