Hello,
At present my Postfix is configured to do virus and spam filtering on
all E-Mails it receives, whether for local delivery or relay. My goal
is to scrub the E-Mails only on local delivery; I don't want any virus
or spam filtering on relay. Here is how I am currently scrubbing all
E-Mails, via master.cf:
smtp inet n - n - - smtpd
-o content_filter=mycustomfilter
("mycustomfilter" is defined elsewhere in master.cf; it calls a script
that scrubs the E-Mail and then invokes "/usr/sbin/sendmail". I can
supply details if needed, but the script does its job reliably, so I
don't imagine its innards will be of consequence.)
Now, how do I get Postfix to send the E-Mail without scrubbing if it's
being relayed? I assume I would want to configure this via the "relay"
and "local" lines in master.cf; but thus far it's not working -- the
"smtp" line apparently takes precedence and there is no evidence that
"relay" or "local" is being visited.
smtp inet n - n - - smtpd
relay unix - - n - - smtpd
local unix - n n - - smtpd
-o content_filter=mycustomfilter
Clearly I'm doing something wrong; tips or clues? What conditions are
required to hit the "relay" or "local" handlers, or am I going about it
all wrong?
