Topic: javascript email-checker (Page 1 of 1)

hello, i am looking for a javascript function that checks a string for a valid emailaddress. it doesnt have to be super-exact. so no TLD-checking is required.

if anyone of you guys has such a function, i would be very grateful if you would share it. thanks!

Peter-Paul Koch's QuirksMode : JavaScript - Valid email address

Validating e-mail addresses can't be done with a simple regular expression. One of the main problems with trying to validate an e-mail address with a regular expression is that the RFC for e-mail addresses allows almost any string you can think of as a valid address and if you use an expression that looks for the pattern /[a-z]+@[a-z]+\.(com|net|org)/, you will end up telling a lot of people with valid e-mail addresses that their address is invalid.

As a quick example, I use a program called MailWasher to screen my e-mail before I get it from the server. MailWasher doesn't recognize that '+' is a valid character in an address and I'm getting more and more e-mails from mailing lists where people have decided to use '+' in their address. As a consequence, I get about five e-mails a day that MailWasher marks as being suspicious because it contains an invalid address.

Take a look at the following links for a better description than I've given of how to validate e-mail addresses:

Regexp for validating an email address
How to Validate an E-mail Address
Valid Internet Email Address.
more reading

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-- not necessarily stoned... just beautiful.

poi thanks for the link, but not even the built in example on that page works. JS errors in opera, ie and firefox.

hyperbole you are right that its quite difficult. as i said i am not looking for a super-correct checker. only thing is it should produce false negatives.