Re: What's closing off port 25?

[Jonathan Q <jq@example.com>]

Josh Glover (jmglov@example.com) wrote:

> Just out of curiousity, what makes Exim better than qmail? I
> have never used Exim, but qmail is pretty damn secure.

From a technical standpoint it's probably six of one, 
half dozen of the other.  Sendmail is quite secure, too.
So if Postfix.  From a security standpoint, it doesn't
really much matter whether you go with qmail, Exim,
Postfix, or Sendmail.

Exim's advantage lies in good regex-based mail
filtering on both headers and message bodies
(this is very nice!) and human-readable config files.

Postfix also has more human-friendly config files and
I suppose qmail probably does, too (haven't looked 
at it).  I understand that Postfix also can read 
Sendmail config files, making it particularly easy to
migrate to it from Sendmail.  Not sure about its
filtering capabilities.

Jonathan