On Jul 11, 2021, at 9:58 AM, Wietse Venema <wie...@porcupine.org> wrote:
> Ron Garret: >> I have recently come under a backscatter spam attack from one >> specific domain. This domain has blacklisted my server?s IP >> address, and so bounce replies sent to this domain are piling up >> in my mail queue and I have to go through periodically and manually >> delete them. I don?t want to disable bounce messages in general >> because I don?t want incoming messages with typos in the destination >> address to just vanish into the cosmic void. Is there a way to >> disable bounce replies for a specific domain? > > Why is your server sending bounces (or any other email) to that > domain? Because spammers are sending messages with forged return-path headers to invalid addresses on my server. It’s called backscatter: https://en.wikipedia.org/wiki/Backscatter_(email) It’s actually possible that I’m sending backscatter spam to other domains, but only one has blacklisted me so far. rg
