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Editorial Team
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Asked: 2026-05-23T14:02:37+00:00

I wish to replace email addresses in a string to something else. It does

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I wish to replace email addresses in a string to something else. It does not work for me.

    string body = "this is a test abc@emailadx.com";  
    string pattern = @"\b[!#$%&'*+./0-9=?_`a-z{|}~^-]+@[.0-9a-z-]+\.[a-z]{2,6}\b";

    Regex.Replace(body, pattern, "Hidden Email Address");
    return body;

Any hints would be helpful please.

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1 Answer

  1. Editorial Team

    You want to do this:

    return Regex.Replace(body, pattern, "Hidden Email Address");

    If you look at the documentation for Regex.Replace, you’ll see that it returns the newly replaced string. It does not affect the string that was passed in.

    NOTE: this is assuming you’re using C#. But I’m guessing you are, from the syntax.

    FURTHERMORE: If your regex still isn’t working well, try this one from the Regular Expressions Cookbook (by Goyvaerts & Levithan):

    @"^[\w!#$%&'*+/=?`{|}~^.-]+@[A-Z0-9.-]+$"
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