Gmail has it's problems (it is unusable on Chrome for me at the moment, I need to use Edge), but probably only 1% of spam emails are false positives. I am no e

Gmail has it's problems (it is unusable on Chrome for me at the moment, I need to use Edge), but probably only 1% of spam emails are false positives. I am no email server expert but it sounds like he needs to Google SPF, Reverse DNS and Domain Keys.