>> I run postfix and my mail clients use smtps so I was thinking I may as >> well close port 25. How can I do that? > > I'd use iptables or equivalent. > > I have my doubts about postfix itself because I think that'd be an RFC > violation. So far...
Could you elaborate on that a bit? I'm not sure what you mean. > OTOH, you are liable to get a lot of traffic on port 25 that you don't want > to miss. You might not really want to close it. I thought postfix's smtp/smtps is only used for mail transmission for my mail clients? - Grant