On Fri 25/Oct/2024 19:14:15 +0200 John R Levine wrote:
On Fri 25/Oct/2024 17:51:47 +0200 John R Levine wrote:
That way a receiver has to manage a list of forwarding recipes for each user.
Surely it is obvious why this sort of thing does not scale.
Beg your pardon, but it's not obvious to me. It should be a small number,
I'd guess less than a few hundreds, less than 10 on average. If older spam
filters could manage it, why wouldn't it scale for an ARC filter?
Some mail systems have a billion users, most of whom are not technically
sophisticated, and too many of whom are spammers trying to trick the reputation
system.
A system handling billion users must be pretty fat. They handle flags, IMAP
keywords, web mail preferences, address books and who knows what else.
Handling subscriptions is just another file.
I agree that the interface for asking to confirm subscriptions must be quite
hard to design. However, users who subscribe to mailing list or set up
forwarding must have a minimal degree of sophistication.
Confirming a subscription only affects that user's mailbox. No games.
Best
Ale
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