How Do I Verify Email Address

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i want to check that user entered the yahoo(particular domain) email address how can i do that in c# windows app.
i m using this pattern
mRegexpp = new Regex(@"^([a-zA-Z0-9_\-])([a-zA-Z0-9_\-\.]*)@(\[((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}|((([a-zA-Z0-9\-]+)\.)+))([a-zA-Z]{2,}|(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\])$");
i also want that it verify that user entered a yahoo email address.

Posted 26-Jul-14 6:50am

Nainaaa

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Abhinav S · Answer 1 · 2014-07-26T06:57:00

Solution 1

Try
Validate Email Address in C# [^]
C# - Validate Email Address Syntax and Test Email Address[^]

Posted 26-Jul-14 6:57am

Abhinav S

Comments

Nainaaa 26-Jul-14 17:21pm

mRegexpp = new Regex(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(?!yahoo)(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
now am using this regex,it is excluding yahoo addresses,i want that it accept the yahoo addresses and rejected the other ones.how can i do that??

Sergey Alexandrovich Kryukov 26-Jul-14 22:26pm

5ed.
—SA

Abhinav S 27-Jul-14 2:42am

Thank you SA.