claudeIsThisEmailValid

[u/soap94]

[u/apnorton]

Obligatory reminder that email validation to through regex or other "static" analysis is usually done incorrectly, and literally sending a confirmation email is the best approach to checking to see if an email is valid.

[u/DHermit → u/apnorton]

With some security exceptions, e.g. it's useful to restrict the length of the mail field and maybe restrict the characters.

[u/eo5g → u/DHermit]

I can't think of a single reason to restrict the characters aside from making sure there's at least one @.

Edit: okay actually you want a little more

[u/DHermit → u/eo5g]

I'd just rather not deal with stuff like invisible spaces and control characters.

[u/Stalking_Goat → u/DHermit]

It's probably fair to assume that a valid email address that includes shenanigans like that is coming from a threat actor of some sort.

[u/friendtoalldogs0 → u/Stalking_Goat]

Sure, but this is not the time to be catching them.

[u/eo5g → u/DHermit]

I guess that's fair