Postfix and antispamming

[Sweeny]

Hi there,

I have some improvments for the main.cf in ispcp to prevent faking of email adresses which do not belong to the customers:

Code:

smtpd_helo_required = yes

smtpd_sender_login_maps = hash:/etc/postfix/ispcp/aliases

smtpd_helo_restrictions =
  reject_invalid_hostname

smtpd_sender_restrictions =
  reject_sender_login_mismatch

I think this could be very useful also as rejecting helos which are not rfc conform.

And I think adding policy-weightd to ispcp could be a very nice thing. It prevents spam _BEFORE_ queueing <=> spamassasin. Have a look at:
http://www.policyd-weight.org/howto.html
It is very easy to setup and it has a good performance and prevents much spam.

Greetings
Sweeny