On Tue, May 27, 2025 at 9:47 AM Paul Ebersman <list-mai...@dragon.net> wrote:
> > pe> Your network but be aware that the legit comcast email MTAs are also > pe> in 7922, so you will have trouble corresponding with the comcast > pe> email folks if you do this. > > I annoyed so do not care, I sure my customers not care either at moment, will revise in few day > Also worth considering, if it's the same folks that have been bombarding > me, they are using all sorts of infected consumer ISPs, US and > non-US. I've seen waves from spectrum, an italian DSL provider, cox, and > others. > > They are all already in sbl/xbl, but if you're blocking directly, be > prepared to do a lot of whack-a-mole. > Yes, but less hitting of RBL is better than relying on RBL, that is how you say "passing the buck". We run milter-regex on 25 so mx-ins just catch cable dsl senders, had to modify postfix before to use also with 587 and 465 and now catching 99%, reducing my reliance on hitting spamhaus, since it is all our duty to stop garbage as much possible before get to RBL test When block comcast ASN, problem went 1800+ to 250/hr yes wack-a-mole game is tiresomes, but milter-regex is doing well catching rest now with little reliance on RBL
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