Extract Domain From Email Address

Mar 4, 2010

I'm trying to extract the domain name from an email address. For example if an email address is info@mydomain.com i want to extract 'mydomain' from the string.

I have some C# code which does this:

[Code]....

This works fine - except if a user has an email address which contains a dot '.' (e.g. fname.lname@mydomain.com) then it throws the following error:

Length cannot be less than zero.Parameter name: length
Line 29: int startIndex = strEmail.IndexOf("@");Line 30: int endIndex = strEmail.IndexOf(".") - startIndex;Line 31: string domain = strEmail.Substring(startIndex + 1, endIndex - 1);

The problem is the first '.' in the email address is causing it to calculate the string from the incorrect position.

Is there a way to retify this - or does anyone know of another solution to extract the domain name from an email address?

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