Restrict email address to only one domain

Question

I'm currently using below regex to check emails,

\w+@\w+\.\w+

but I would like to force the user to use their school domain (mark@college.edu), how do I accomplish this?

Try changing the last `\\w+` to `edu`... – l'L'l Mar 05 '16 at 02:46 — l'L'l, Mar 05 '16 at 02:46
Do you mean only one domain name or of similar type ? – Mar 05 '16 at 04:08 — , Mar 05 '16 at 04:08

score 0 · Answer 1 · 2016-03-05T18:41:13.347

0

If you have a specific college name, let's suppose it as college then validation is pretty easy. Following regex does that.

Regex: [\w0-9\.-]*@college\.edu

Explanation:

[\w0-9\.-]* matches the first part of the email which might contain Latin alphanumeric characters, dot, underscore. - hyphen should be added either at beginning or end of character class.
@college\.edu checks for the specific college's domain name.

edited Mar 05 '16 at 18:41

answered Mar 05 '16 at 04:20

thanks for the help. If the email address contains a hyphen (ex. m-example@college.edu) would this be correct ? [-\w0-9\.]*@college\.edu – Rahm Mar 05 '16 at 18:24
Yes ! absolutely. Just take precaution to add `-` at beginning or end of regex. Since you didn't mentioned `-` in your question I didn't added it. – Mar 05 '16 at 18:29

1 Answers1