On 2021-11-16 23:55, Ruben Safir wrote:
I got an email from cpa...@mrbrklyn.com which is not from
us, as we are mrbrklyn.com
local envelope sender should be rejected in port 25, no real users do
this
symtoms is envelope sender is equal to envelope recipient, but this
should only be accepted if its submission port or smtps port
create a ticket for cpanel on this issue so it can be solved where the
bug is
for the postfix part it would be possible to make another restriction
class to reject senders that is local on port 25 ?
i just add
reject_semder_access maptype:/etc/postfix/recipient_maps.maptype
maptype must be a database type eq mysql sqlite postgrsql ldap since key
results is diffrent pr key
hopefully this maps know what is localy accepted
do not use this on submission/smtps ports
all the best
