Em 24/08/2022 10:08, Ivars Strazdins escreveu:
Hello Postfix Experts,
let’s say that domain.com <http://domain.com> is Postfix $mydomain.
I know that it is possible to protect
/etc/postfix/protected_destinations from external senders, as per
https://www.postfix.org/RESTRICTION_CLASS_README.html
But is it possible to limit users from the same domain who can send
mails to an internal email distribution list?
In other words, is it possible to setup Postfix so that
us...@domain.com CAN send an email to /etc/postfix/protected_destinations
us...@domain.com CANNOT send an email to l...@domain.com
l...@domain.com is a simple Postfix alias.
Thanks for your time,
Ivars
Hi, yes, you can.
main.cf:
smtpd_restriction_classes = insiders_only
insiders_only = check_sender_access hash:/etc/postfix/insiders, reject
...
...
smtpd_recipient_restrictions = check_recipient_access
hash:/etc/postfix/protected_destinations
...
...
/etc/postfix/insiders:
us...@domain.com OK
anotheru...@domain.com OK
/etc/postfix/protected_destinations:
l...@domain.com insiders_only
li...@domain.com insiders_only
$ postmap /etc/postfix/protected_destinations
$ postmap /etc/postfix/insiders
$ postfix reload
----------------------------------
_ Engº Julio Cesar Covolato
0v0<ju...@psi.com.br>
/(_)\ F: 55-11-99175-9260
^ ^ PSI INTERNET
----------------------------------
