Oh the edge cases will be so angry. There are a very few engineers at Google who have Gmail account names shorter than 6 characters. It's not the norm, but they exist. Their addresses can't be validated.
I'm sure there are special cases all over the place. It would be nice if Mailgun differentiated between 'this address is just malformed' and 'from what I know of [ISP], this address oughtn't exist'.
I'm sure there are special cases all over the place. It would be nice if Mailgun differentiated between 'this address is just malformed' and 'from what I know of [ISP], this address oughtn't exist'.