Earlier quoted context omitted.
Really the entire idea of client/server-side email "validation" kind of seems like an ancient, cockroach-like anti-pattern that is impossible to stamp out. Like, what is the problem they're even solving? One validates email addresses by sending an email with a token the user then acts on. There are useful things to do with emails, like checking against already registered ones (including any blacklists), but I can't t…
> what is the problem they're even solving? The problem they're solving is that a lot of people just enter their email wrong and then wonder why they didn't get the signup email. > Like if someone tries to register an already registered email, send an email about it don't leak that it's registered. This is something that's cargo-culted far too often. Maybe for some services it's worth keeping secret which emails are…
“This doesn’t look like a correct email address that our clients usually use. Please re-check it again and proceed if you’re sure.”
for most it isn't
It depends more on an email address, than on a service type, because it’s a part of a personal information that a person owns.