Check Sender Information?
Posted: Tue Aug 28, 2007 10:12 am
by TRACKS
Can anyone enlighten me on how I can Check Sender Information and reject mail from unresolvable domains?
Posted: Tue Aug 28, 2007 8:08 pm
by dougp23
install spamassassin. it does all that.
Posted: Wed Aug 29, 2007 10:31 pm
by grahamk
from /etc/mail/sendmail.mc
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
dnl # FEATURE(`accept_unresolvable_domains')dnl
The only thing to consider is that with a default install of Scalix, sendmail does not accept the incoming mail, but gets handed the mail from scalix. I am using mailwasher, and as part of getting DNSBL working, I have configured sendmail to accept all incoming mail.