Regular expression for a email ID

Question

1.00/5 (3 votes)

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How to check if a EMail id consists a number in the first place? Then the mail id should not be accepted.

ex: 1XXX@YYY.com

What I have tried:

^[a-zA-Z0-9_.-]*$ this is the regular expression i have used.

Posted 22-May-17 0:18am

chandra sekhar

Updated 22-May-17 2:34am

CHill60

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2 solutions

Solution 2

This article Email Address Validation Using Regular Expression[^] might help you.

Posted 22-May-17 2:34am

RaviRanjanKr

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OriginalGriff · Accepted Answer · 2017-05-22T01:15:00

Solution 1

Try this:

([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})

It's straight from the Expression Library of Expresso[^] - it's free, and it examines and generates Regular expressions.

Posted 22-May-17 1:15am

OriginalGriff

Comments

chandra sekhar 22-May-17 15:37pm

Thanks for the reply.What this regular expression means (@"^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$")

OriginalGriff 22-May-17 16:08pm

Copy it into Espresso, and see what it says!