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Regex for specific email domain - PHP

I ran into the issue of checking emails with regex to be sure it is only valid for a specific domain. I searched through the internet for hours without reasonable joy, so I decided to write mine. I am not sure how perfect this looks but it just works for what I needed it for.

If you have this same issue, below is the pattern I used.

/[_a-z0-9-]+(\.[_a-z0-9-]+)*@(?i)mydomain.com/

You can savely change "mydomain" to whatever you want.

I hope this keeps the shit away from the fan for someone.


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