Question

In my application I validate a email domain like this:

public bool DomainValid(string domainName)
{
    try
    {
        IPHostEntry entry = Dns.GetHostEntry(domainName);
        return true;
    }
    catch (Exception)
    {
        return false;
    }
}

The method is good, but not on every cases, like ‘mpg.ro’ is a valid email domain but it catches an Exception.

Can someone give me another idea of email domain validation in C#?

Answer 1

From command prompt:

nslookup -type=mx <domain.name>

you can implement this inside C# too and read the answer.