Rich Kulawiec (rsk) writes:
>
> Best practice is refuse all mail that comes from any host lacking rDNS,
> since that host doesn't meet the minimum requirements for a mail server.
No, that's utterly stupid. You're excluding countries which have
poor infrastructure or clueless ISPs (usually legacy telco operators)
who can't be bothered to administrate IN-ADDR.ARPA delegations for
their customers. It doesn't help, and only encourages people in
these countries to go for @{hotmail|yahoo|gmail}. Millions of botnet
PCs have valid reverses.
> Yes, some of these also impact non-spamming but broken mail servers,
> however, this is usually the only way to get the attention of their
> operators and persuade them to effect repairs.
You're kidding, right ? They don't give a rat's ass.
> Locally, .name, .info and .tv are permanently blacklisted, and I recommend
> this to others: they're all heavily spammer-infested. .biz is not
> blacklisted at the moment, largely because it's been so badly ravaged
> that spammers *appear* to be abandoning it.
"Bomb the bridge, salt the earth" approach ?
