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Editorial Team
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Asked: 2026-05-18T09:03:27+00:00

i am looking for a regular express to validate a list of email addresses

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i am looking for a regular express to validate a list of email addresses like the following

test1@abd.com;test.test@abc.com;test3@test.com

and

test1@abd.com;test.test@abc.com;test3@test.com;

optional “;” at the end of the list.

thanks,

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1 Answer

  1. Editorial Team

    Update

    Don’t. Split on the delimiter and validate each one separately. I would also recommend setting a match timeout and/or non-backtracking flag to prevent excessive CPU usage when matching.

    Original Answer

    From: http://regexlib.com/RETester.aspx?regexp_id=1007

    ^(([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+([;.](([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}){1,25})+)*$
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