Domain name in Email ID?

Question

Hello
In my_form i have couple of email ID populating fields, i placed the adobe's email object text feilds, hence am getting a validation error popup, if user do not put either @ or a period, fine
But, as this is used with in company and user always specifies company employee's official ID, hence i want to put a validation for DOMAIN NAME.
The company's domain names looks like "domain1" or "domain2", email IDs looks like [email protected] or [email protected]
User is SUPPOSE to enter ONLY either domain1 or domain2, if not, i need to alert!! (not like gmail, Yahooh email ID)
1) Pls. let me know, is there in built feature (like Validation Pattern)?
2) Any ready-made function? if so, pls. code snippet
3) If not, pls. provide code snippet
I am looking in JavaScript
Thank you

Answer 1

Validation Pattern should work. Something like this: text{O'@domain1.com'}|text{O'@domain2.com'}
You can also use regular expression.