DragonFly bugs List (threaded) for 2009-05
Re: (343)2611961 Все СМИ Екатеринбурга.
Thomas E. Spanjaard wrote:
Bill Hacker wrote:
Все СМИ Екатеринбурга. Пишите email@example.com
echo '*el.ru' >> /var/mail/filters/REGEXP-block
Try e1.ru instead of el.ru ;).
Corrected to '*.el.ru'
Not that it matters - with rejection on PTR RR fail or reverse_host_lookup that
rule has about a 1 in 100,000 chance of ever being triggered *here* (not a lot
of legit traffic in our direction form there anyway...).
Couldn't do forward-reverse lookup fail in such a hard-edged manner five years
ago. So-called 'false positives' were overwhelming.
No longer problematic at all.
As the 'big' ISP have had to take a similar route, *honest* folks have gotten
- register a PTR RR & MX or A to *match*, AND NOT in dynamic-IP block
- OR use a 'smarthost'
- ELSE .... well .. a lottery ticket at least has *some* chance of a win...