wiskbr...@hotmail.com a écrit : > Please do not top post. if you don't know what this means, google will tell you.
> What should the contents of /etc/postfix/access_helo.cidr look like? > As a start, you can reject attempts to helo using your IP address. > I assume in there one should also place RFC1918 addresses? What is the order > for this? I mean, if I use an RFC 1918 address for my internal network, and > I place all RFC1918 addresses in /etc/postfix/access_helo.cidr, will my > internal addresses get rejected? > - you should separate your mail submission (outbound mail) from mail your receive. this is what permit_mynetworks and permit_sasl_authenticated are for in the "common" setup. but you can o further and only allow submission on the submission port (587). - do you really have software that helo's as your (literal) IP?