Am 05.02.2015 um 16:08 schrieb Wietse Venema:
li...@rhsoft.net:
what you you smoked to only quote the part of a sentence which makes no
Reindl, tone it down
sorry, but that style of quote out-of-context and then explain me what a
PTR is like i would not know such things better as most people calling
themself admins was purely insulting
Your spam load is not the same as what other people see
my spam load would not be that high if all the zombies where out of game
by unconditionally block outgoing port 25 worldwide and/or enforce SPF
and PTR restrictions because the spammer business for infected zombies
would disappear completly
Do not assume that what works for you is good advice
for the rest of the world. In my case, PTR-based rules do not solve
any problem; my residual spam comes mainly from real MTAs.
i don't bother at the end which filters others set, i just explained why
it is a *damned good idea* to care about basics like a non-generic PTR,
in best case matching in both directions and SPF (at least with ~all)
helps *in general* all people on this planet to reduce the spam amount
why? because every day other sender domains are forged and frankly if
more people would refrain from setup a MTA without any knowledge i
recently would not have been victim of a backscatter-flood because my
domain was forged - backscatters even conatining the SPF-failed header
and coming from a "postmas...@xxx.xxx.local" should in fact lead to fire
the admin on the other side for a) accept while the RCPT on his side
don't exists and a SPF hard-fail happened and b) bounce back the junk
90% of the PTR hits here are @yahoo.com, @gmail.com and @hotmail.com
envelopes coming from 123.123.123.123-dsl-sombody.com.br likes
