Bruno GRANDJEAN wrote:
thks for replying to me so quickly, I will add a:
reject_rbl_client zen.spamhaus.org
in my /etc/postfix/main.cf
I already added :
reject_rbl_client ips.backscatterer.org
how can I reject mail from outside claiming to be from my domain?
[plain-text only please]
[please don't top post]
something like:
smtpd_sender_restrictions =
permit_mynetworks
check_sender_access hash:/etc/postfix/not_my_domain
# not_my_domain
example.com REJECT
This is not without risk. Some legit mail (mostly
notification services and some mail lists) will arrive with
your domain as sender, but this might help as a short-term
solution to your problem.
Don't be tempted to reject your domain in the From: header,
that would reject a great deal of legit mail - such as your
postings to this list.
ips.backscatter.org won't help too much since this isn't
backscatter, and is also likely to reject legit mail unless
you use it like this:
smtpd_data_restrictions =
permit_mynetworks
check_sender_access hash:/etc/postfix/no_backscatter
# no_backscatter
<> reject_rbl_client ips.backscatterer.org
Which will reject only bounces from them (including legit
bounces).
--
Noel Jones
