On 15/06/2016 16:09, Gil Bahat via mailop wrote:
> Prudency aside, this is one of the things wrong in the email world. I don't
> get it why recipients do something which is patently lax (having a naive
> regex) when a more appropriate solutions exist (spamhaus PBL) with a 'screw
> the sender, it's their problem, they'll bear the wrath of their users' -
> obviously allowing recipients to do this even for one of the largest senders
> in the world (126/163/yeah.net [1] with over 700m users!).
Its more about stopping spam, not just deliberate spam, but the
accidental, as in malware infected PC's , contacting DNSBL's uses
network resources, why take seconds when you can decide in nano seconds,
no need to keep throwing hardware at the problem, when you can cull it
there and then, our DNSBL's and anti spam-anti virus systems work 40%
less through blocking these types of hosts, since they are for the most
part malware/virus infected machines.
In an ideal world all ISP's would block port 25 outbound except for
official mail servers and make users use submission port, that would go
along way to curbing the noise, but not eliminate it.
--
If you have the urge to reply to all rather than reply to list,
you
best first read http://members.ausics.net/qwerty/
Links:
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