I'm trying to figure out how to validate a user's e-mail address. I'd rather not have the script send a message and wait for a reply to see if it's a valid address... maybe check the format or something? I've never done this before, so any help is appreciated.
Basically I have a form where a user puts in their e-mail address, first name, and last name. I want to make sure that it's a valid e-mail address before adding it to the database.
Thanks.