Email Regex. Is this regex expression appropriate?

Question

Possible Duplicate:
How to use a regular expression to validate an email addresses?

\A[\w.-]+\w@[a-z\d\-.]+\.[a-z]+\z

What do you think of the above expression for email validation. Any errors, any loopholes? Thank in advance for the support.

Answer 1

What do you think of the above expression for email validation.

For one, it doesn't accept my address. So, there's obviously a bug in there somewhere. I suggest you read RfC5322 carefully, it describes the valid syntax for addresses quite clearly, although unfortunately it hasn't yet been updated for IDN.

Answer 2

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+(?:[A-Z]{2}|com|org|net|edu|gov|mil|biz|info|mobi|name|aero|asia|jobs|museum)\b

Regex from regular expressions info. It should match RFC 2822 standard.