Add special characters to Asp.net RegularExpressionValidator for E-Mail

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+([-.]开发者_如何学编程\w+)*" />

\w+([ü,ç,other characters here][-+.']\w+)*@\w+([ü,ç,,other characters here][-.]\w+)*\.\w+([ü,ç,,other characters here][-.]\w+)*

You can use the special format "\u00fc" to specify the hex value of the char. Look at the table here http://www.ascii.cl/htmlcodes.htm

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+)*" />