Hello. One spammer has tried about 300 times send me email, always from the same address, but from about 20 different IP . Never pass verify sender, always get 450 error....my question is...when one email fail postfix verify_sender 4 or 5 times..will be possible auto-blacklist this email for one week, for example?
I use postfix 2.6.5 and postgrey 1.32 Thanks Josep
