Every time you have problems that your self hosted email is blocked by Microsoft or Google. And you have no idea why because all you get from them are template replies, and then someone comes along and asks:
"Have you set up SPF, dkim and dmarc for your domain?"
A fairy dies.
@joao just one fairy? I thought at 3 of them..
"just one fairy?"
Well, with the amount of times people use the sentence:
"Have you set up SPF, dkim and dmarc for your domain?"
They must all be already dead by now.
There are other issues in email hosting has.
And sometimes the answer can be as simple as:
Gmail and MS mail filters s*ck, and it is an insane experience to get unblocked.
