Les Mikesell wrote:
On Tue, 2006-07-25 at 06:19, Vinayak Mahadevan wrote:
I am basically confused as to what mailing system I should use. Sendmail or
qmail? Because in one site they had mentioned that sendmail is not that good
compared to qmail.
Sendmail has been fixed since then... But, 2 pieces of advice:
first consider the supported life of fedora compared to other
distros like RHEL or Centos before building a service that you
expect to run for a long time on it. Second, for a mail server
you really want a spam/virus filter that can reject during the
smtp conversation so you don't have to return bounce notifications.
Never automatically send e-mail "bounce notifications" for spam after
your SMTP server has received a message. This accomplishes nothing
because in all likelihood the headers are forged and you will be sending
a notice to an "innocent third party" at best, or an invalid address,
from which you will receive a rejection notice, or to somebody/something
that simply ignores your "reply" anyway.
See "joe jobbing" on google....
If you want to reject spam, do it at the smtp level where your server
can reject the message by reporting an error code to the sending
client... then your machine does not even receive the message in the
first place.
One way to do that is to use sendmail with MimeDefang running
as a milter: http://www.mimedefang.org
Yes.... and keep in mind you do not have to configure everything at
once.... I use sendmail/procmail and spamd (spamassassin) and
clamAV.... very little configuration was needed.... go through the
/etc/mail/sendmail.mc file line by line ... if you change anything,
simply restart sendmail. That file is well documented, and there is lots
of information via google.
It is quite straightforward to use spamassissinand clamAV from within
procmail, I have not been able to get the milter-approach working,
though I think it may be "better" in some cases.
As for configuration enhancements... I have spamassassin and clamAV set
up "after the fact"... being called from procmail. I handle such files
within procmail and do not "reject them" at the smtp level. But, I NEVER
auto-reply to spam/virus-infected messages either... (See above)
