How much attention do you pay to e-mail validation in forms?

Question

gmail

Today I came across a funny fact that I never paid attention to. Perhaps for some this will seem quite normal and obvious.

I needed to register a second account on Twitter. I did not want to start a separate e-mail for this, but an account was already registered on the existing mailbox. The decision came quickly - I remembered that gmail will put letters in my mailbox even if instead of "[email protected]" they will be sent to me to "[email protected]". Well, you know the end of the story.

How do you solve this problem in your projects and do you solve it at all?

Answer 1

In my opinion, the main purpose of e-mail validation is to protect against typos. Everything else is redundant.

Answer 2

"+" is a valid character in the email. Therefore, it would be illogical to forbid its use. Validation is done in accordance with RFC and that's all.

Answer 3

By the way, Google's letters that will be sent to [email protected] also go to [email protected]
Google ignores dots in emails.

Answer 4

I can suggest you post a poll on this topic. For example, “How do you validate email in forms?”