"Hauke Fath (SPG)" <h...@spg.tu-darmstadt.de> writes: > On 2024-10-09 19:21, Greg A. Woods wrote: >> I would recommend turning off greylisting, as an experiment, to see what >> happens. I've found it to be entirely counter-productive. It hasn't >> been useful for literally years now -- the spammers have long ago adapted. > > That is not the impression that my server log gives. > > There still appear to be enough hit-and-run mail bots about, which are > effectively discouraged by greylisting.
I concur. I'm using it, with custom rules about how long to wait for what class of sender (RBLs), and it blocks a lot and rarely significantly delays legit mail.
