From: mouss (usebsdfree.fr)
Date: Fri Dec 01 2006 - 17:23:44 CST

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Tony Earnshaw wrote:
> Carlos Eduardo R. L. de Miranda wrote:
>
>> Our server is receiving lots of spam messages from servers with Russian
>> domain.
>> I would like to block every message from Russian domains.
>>
>> Postfix 2.3.3 - Fedora Core 6
>>
>> main.cf
>> smtpd_sender_restrictions = check_sender_access
>> hash:/etc/postfix/sender,
>> reject_non_fqdn_sender, reject_unknown_sender_domain
>>
>> sender file:
>> /.**\.ru$/ REJECT text message
>
> The above is wrong and obviously won't block anything from anyone. Do
> you see why? Look again!
>
> This will work (tested with pcretest):
> /^.+.+\.ru$/

Note that
/^.+...
is almost equivalent to
/.+...

assuming one doesn't accept nonfqnd addresses,
/ru$/
would block more than the posted expression. or if you think there will
be a tld ending in ru other than .ru, then
/.\ru$/

but as you say, the sender tld won't help much... OP may want a geo
DNSBL such as blackholes.us (Is this still maintained?).

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]