Valeri Galtsev wrote:
while you haven't settled on anything you could consider amavisd as well...
I'm using amavisd on a CentOS-6 server (with dovecot and spamassassin) but I found it very difficult to setup. The documentation for amavisd under CentOS is unbelievably bad. In fact, the documentation on using postfix and postfix-related packages under Linux is beginning to rival that for sendmail when it first came out, before someone wrote sendmail.mc .
There are innumerable recipes involving bizarre (and unexplained) additions to main.cf and master.cf (in /etc/postfix/). I asked about one such recipe, and was advised that I would have to read 2 books on postfix before I could understand it.
I've never seen a 1-page document that said, "These are the changes I made after downloading packages X, Y and Z." And there are few if any tests to determine where email is going if it is not going where you want it to.