Re: Blocking TLDs

[Michael Tokarev]

08.02.2023 12:14, Viktor Dukhovni wrote:
..

     /etc/postfix/sender-access:
         top     REJECT I employ crude anti-spam measures
         .top    REJECT I employ crude anti-spam measures

I wonder how effective to block just the TLDs. I guess it is zero, no?

I *guess* foo@top shouldn't really work, as it is non-fqdn in terms of
postfix, and is blocked by, say, reject_non_fqdn_sender.

So only entries like .top (with the leading dot) are needed here
(± the context, which is about how good it is to block-by-tld).

/mjt