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Editorial Team
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Asked: 2026-05-14T06:05:54+00:00

I have a e-mail address validator but I need to add special characters as

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I have a e-mail address validator but I need to add special characters as valid for example ü, ç… Because users in Turkey (or anywhere else) can have a web site url like: hasangürsoy.com My code is below:

<asp:TextBox ID="tEMail" runat="server" />
<asp:RequiredFieldValidator ID="rfvEMail" runat="server"
    ControlToValidate="tEMail" ErrorMessage="* required" />
<asp:RegularExpressionValidator ID="revEMail" runat="server"
    ControlToValidate="tEMail" ErrorMessage="* invalid"
    ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" />
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  1. Editorial Team

    Okay I did it. But be careful, if you use this e-mail validation expression the mail address can’t pass validation when you try to use it for example ReplyTo address.

    <asp:RegularExpressionValidator ID="revEMail" runat="server"
    ControlToValidate="tEMail" ErrorMessage="* invalid" Display="Dynamic"
    ValidationExpression="\w*[\wçığöşü]+([-+.']\w+)*@\w*[\wçığöşü]+([-.]\w+)
    *\.\w+([-.]\w+)*" />
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