On Mon, Mar 11, 2013 at 8:27 AM, James B. Byrne byrnejb@harte-lyne.ca wrote:
The main benefit to using Postfix over Sendmail is that Postfix definitely places a lower intellectual load on its administrators. For that reason alone I would recommend it over Sendmail. While M4 macros take most of the arcana out of Sendmail's configuration files they are no where near as easy to understand as Postfix's simple config files.
On the other hand, if you do 'normal' things with sendmail, all you have to do is tweak a few values in the provided sendmail.mc and restart to rebuild the configs, and if you do anything unusual you can drop in MimeDefang as a milter and gain complete control of all of the internal steps in a small snippet of perl. Personally, I think the introduction of the milter interface years ago fixed all of the old issues with sendmail. I think postfix can use MimeDefang these days too, but it took it much longer to make it usable.