Am 29.06.20 um 16:42 schrieb Michael Rathbun via mailop: > On Mon, 29 Jun 2020 15:46:05 +0200, Hans-Martin Mosner via mailop > <mailop@mailop.org> wrote: > >> Am 29.06.2020 13:16, schrieb Laura Atkins via mailop: >>> On the advice of their lawyers Microsoft doesnt share that >>> information with senders. >>> >>> laura >>> >> Sounds a bit like Kafka's "Der Prozess". Don't tell the defendant what >> he's being accused of... > From the standpoint of those defending the castle from huge hordes of > exploiters and looters, it's more like "Don't reveal details, like the exact > location of all observation posts, the nature of your defenses and the > strength of your force, to anybody not part of your efforts".
I fully sympathize with not letting spammers know what tricks you're using, and it's perfectly ok to give only vague reasons in your SMTP error messages (although I prefer to be very clear, including wording to the effect of "I know who you are, and I'll reject your mail regardless of the tricks you're trying on me".) I would draw the line where someone identifies himself properly and brings a plausible explanation of events - "we only acquired the IP range recently" can be checked and is pretty plausible. If someone contacts us about rejected mail they can be pretty sure that I read their message and look into the matter. Mail operators who refuse to accept mail from peer mail operators (not anonymous spammers) may find themselves in the same boat pretty quickly, as they depend on getting their mail delivered to others as well. I've been on the verge of rejecting mail from the Microsoft mail infrastructure with pretty scathing error messages due to their apparent inactivity in getting a fix on hacked accounts more than once. It wouldn't hurt them, I know, and when I correctly remember the way Microsoft-created mail software mutilates and hides error messages my message would probably not even reach their customers. Cheers, Hans-Martin _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
