Noted. Thank you muchly for this information :) Filed away for future use :)
-----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of A. Schulze Sent: Friday, February 19, 2016 4:52 PM To: postfix-users@postfix.org Subject: Re: SV: Blocking TLDs Sebastian Nielsen: > Then paste all the DISCARD lines into a new file called > /etc/postfix/banned_tlds (and also add some own TLDs there, its just > to copy paste one line and then change the TLD), and also remove lines > for TLDs you don’t want to block. > > Chmod the banned_tlds file to 666 to ensure the postfix process can read it. two annotations: - I would not suggest DISCARD but REJECT - mode 666 (world writable) is generally not needed. 644 is enough Andreas > > > > > Then do “service postfix restart” > > Then you should be all set. > > > > Test the permission by sending a email using a spoofed address in your > email software, to yourself. The mail will always be successfully sent, but: > > If all goes well, you should see in the logs that “DISCARD” action was > triggered, which means the mail will be tossed in the dustbin without > delivering it to you. > > Remember to return your email client to non-spoofed state after that, > for obvious reasons. > > > > Från: Wolfe, Robert [mailto:robert.wo...@robertwolfe.org] > Skickat: den 19 februari 2016 23:19 > Till: 'Sebastian Nielsen' <sebast...@sebbe.eu>; > postfix-users@postfix.org > Ämne: RE: Blocking TLDs > > > > Just copy and passed the DISCARD contents into banned_tlds? > > > > From: owner-postfix-us...@postfix.org > <mailto:owner-postfix-us...@postfix.org> > [mailto:owner-postfix-us...@postfix.org] On Behalf Of Sebastian > Nielsen > Sent: Friday, February 19, 2016 3:50 PM > To: postfix-users@postfix.org <mailto:postfix-users@postfix.org> > Subject: SV: Blocking TLDs > > > > smtpd_sender_restrictions = check_sender_access > pcre:/etc/postfix/banned_tlds > > > > banned_tlds: > > /\.bid$/ DISCARD > > /\.top$/ DISCARD > > /\.xyz$/ DISCARD > > /\.date$/ DISCARD > > /\.faith$/ DISCARD > > /\.download$/ DISCARD > > > > > > Problem solved. > > > > > > Från: owner-postfix-us...@postfix.org > <mailto:owner-postfix-us...@postfix.org> > [mailto:owner-postfix-us...@postfix.org] För Wolfe, Robert > Skickat: den 19 februari 2016 22:36 > Till: postfix-users@postfix.org <mailto:postfix-users@postfix.org> > Ämne: Blocking TLDs > > > > Greetings all! > > > > This is actually my first posting to the mailing list, but have > actually been following along on a regular basis and have learned > quite a bit of good things (and bad things *smiles*) about Postfix. > Unfortunately, I have one question that I am hoping someone here on the > mailing list can answer. > > > > I get a LOT of emails from domains that have *.download and *.xyz and > their TLDs and I was wondering if there was a way in Postfix that I > could block emails that are coming in from these (and other) TLDs at > the connection level?
