Skaz wrote on Thu, 14 Jan 2010 04:49:55 -0800 (PST): > 1) Kai, yes external mail as in mail (sending or receiving) originating > external to our network in terms of IP, not physically. When I think on it > though, I'll just insist we use RDP or VPN for access when I set it up.
Still not clear what you mean. If you mean mail that is sent thru your mail server from "road warriors" - that has to be SMTP AUTHed and therefore isn't rejected. > 3) Kai's, your Postfix restrictions, am I right in thinking that they only > apply to the 'Mail From' part of an SMTP transaction? > If I'm right in thinking the check_sender_access only deals with the initial > SMTP transaction and not the envelope, I can use it to block bad 'Mail From' > commands but would need another filter to catch the faked envelope fields. There is slight confusion. You are right that this applies only to the SMTP transaction phase. However, this *is* the envelope. What you refer to with "envelope fields" are the normal header fields of the message. > So I think a working filter would do the following: Apart from doing what you suggested (which might prove difficult) you may simply switch off AWL as (according to the part of the message you quoted) this is the main contributing point that these mails are not detected as spam. Kai -- Get your web at Conactive Internet Services: http://www.conactive.com
