Corey Hickman via Postfix-users:
> Hello
>
> I have basic postfix/dovecot installation.
> How can I setup postfix or dovecot to reject the specified domain in sender?
> I know I can setup sieve script to discard messages from that
> domain, but this method sounds rather rigid.
If the list is short, it can go in main.cf:
/etc/postfix/main.cf:
smtpd_sender_restrictions = inline:{
{ example.com = reject }
{ other.example = reject} }
Otherwise some external file will do:
/etc/postfix/main.cf:
smtpd_sender_restrictions = hash:/etc/postfix/sender-access
/etc/postfix/sender-access:
example.com reject
other.example reject
Run "postmap /etc/postfix/sender-access" after editing the file.
> Or shall I install rspamd etc to make a reject policy for that?
That would work too, as long as rspamd etc care called from a Postfix
SMTP daemon that receives mail directly from the network (not from
a Postfix SMTP daemon that receives mail from a content filter).
Wietse
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