IMO you should not reject widely based on HELO. Too many false positives.
More a place for basic checks.
But you can catch that if you want in your files.
smtpd_helo_restrictions = permit_mynetworks, permit_sasl_authenticated,
reject_invalid_helo_hostname, check_helo_access hash:/etc/postfix/hash_helo,
check_helo_access pcre:/etc/postfix/pcre_helo
Greets,
Ludi
-----Ursprüngliche Nachricht-----
Von: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> Im
Auftrag von Adrian van Bloois
Gesendet: Donnerstag, 3. Februar 2022 13:27
An: Postfix users <postfix-users@postfix.org>
Betreff: EHLO/HELO whitelist?
Hi,
I reject unknown hosts through the EHLO restrictions.
But my fritzbox wants to sent me something withou a valid EHLO value.
Is there a whitelist I can put my fritx on accept?
Adrian
--
Adri P. van Bloois
"The greatest threat to our planet is the belief that someone else
will save it."
Robert Swan.
