textbox validation exclude gmail and hotmail emails

Posted on 2009-04-07
Last Modified: 2012-06-22
I have been looking for a regular expression for an textbox ('tbEmail') so that NO Hotmail or GMail addresses are allowed but have been unsuccessful. Please could an expert point me to something that will get the job done or supply some code to do the above?
Question by:clearchannel
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LVL 75

Accepted Solution

Michel Plungjan earned 300 total points
ID: 24085388
var reg = /@hotmail|@gmail|@live\.|@googlemail/
var email = ''

Author Comment

ID: 24085567
Ok, does the syntax "/@hotmail|@gmail|@live\.|@googlemail/" work in an validation control?
I should have made the question clearer I want to check for valid email address but exclude gmale, hotmail etc.
LVL 75

Expert Comment

by:Michel Plungjan
ID: 24086542
Perhaps not with the / /

Remember to ask if it does NOT match then it is ok

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Author Comment

ID: 24095390
Maybe someone with .net skills can answer for me as I do tno think your regexp will will in .net validation control.

Author Comment

ID: 24095601
Here is the code:
If (System.Text.RegularExpressions.Regex.IsMatch(sEmail, "@hotmail|@gmail|@live|@googlemail")) Then
                errorMessage.Text = "The following emails are not valid; Hotmail, GMail, Googlemail and MSN Live"
End If

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LVL 75

Expert Comment

by:Michel Plungjan
ID: 24095878
you may want to add a dot to the @live

since it is only or which is a new hotmail address

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