REGEX to match domain in email addresses

Question

I'm currently using this very relaxed REGEX to validate email addresses:

(/(.+)@(.+)\.(.+){2,}/.test(emailAddress)

1. I believe that it only allows min1_allowsDots@min1_allowsDots.min2 - is this correct?

2. How should I modify it to match only a particular domain - anything@ onlythisdomain.com?

TIA!

iSofia

Answer 1

(.+)@onlythisdomain\.(.+){2,}

This should do it.If .com is also fixed use

(.+)@onlythisdomain\.com