On Fri, Nov 14, 2014 at 12:01:56AM +0200, Mehmet Tolga Avcioglu wrote:
> Is there a way to prevent sendmail -f option from being used to change the
> envelope sender address?
However pickup(8) records the user's uid in the Received header.
Not allowing local submission from remote senders would break
forwarding via procmail, and various other important use cases.
The feature you're looking for would have to be in postdrop(1) not
sendmail(1), but if I recall correctly it does not exist.
--
Viktor.
