Dnia 23.07.2022 o godz. 09:17:30 Laura Atkins via mailop pisze: > > Consider the case where Microsoft spits out a incorrect and false 550 user > unknown (which happens every couple years). What you’re suggesting is > that when this happens the next time, Gmail block every gmail user from > ever sending to those hotmail users at any point in the future. That’s > what you’re asking for. Unfortunately, it doesn’t take into account the > actual realities of sending at scale.
Mailing list managers seem to implement it in quite reasonable way. For example Mailman has a configurable number of rejections, after which sending to that recipient is blocked. But only one reject per day is counted, so with default value 5 the target address must reject mail for 5 days (or longer, if messages aren't sent everyday) to be blocked. Additionally, if there was a successful delivery to the address that previously rejected mail, after a configurable number of days (default 7), the reject counter is cleared if there are no more rejections. Google Groups also have some rules for bounce processing, but they are neither publicly known, nor the group administrator has any control over them. -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub." _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
