[iFarbod]

Quote:

Originally Posted by [HLF]Southclaw sscanf can do that, I can't remember the optimal pattern but it would be something like this: "p<@>s[64]s[189]" (I could be wrong). Regex can also do this but all you need to do really is check if the string contains an @ and send them a confirmation email with a validation key/URL etc.

Yep, Thanks, these emails are valid:

master@localhost
master@127.0.0.1
email@domain.me
email@sub.domain.me
new.email@example.co
test_email@test.io