On 2025-08-19 at 07:42 -0500, Jarland Donnell wrote: > At least in our part of this field we can't block Google or > Microsoft without users considering us to be effectively down. Can't > rate limit without them considering us to be faulty. Can't take it > lying down when Google alone is causing almost exactly 100 server > load (not including that of the others). > > Getting tough out here my friends. I have no worthwhile solutions > other than "add more infrastructure" so I wanted to share the wealth > before someone else gets caught with their pants down on this.
You could rate-limit their empty-return-path mails separately,¹ that should keep pretty much everything your users care about unaffected. ¹ Actually, you may be interested in setting rate limits for individual MAIL FROM:<> values, too. _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
