/// <summary>Checks the specified email address for validity with the mail server responsible for the address.</summary>
/// <param name="address">The email address to verify.</param>
/// <param name="serverName">Name of the server.</param>
/// <exception cref="ArgumentOutOfRangeException">serverName;ServerName needs to be a full qualified domain name!.</exception>
public static void Verify(this MailAddress address, string serverName)
{
var i = serverName.IndexOf('.');
var n = (i == -1) ? -1 : serverName.IndexOf('.', i + 1);
if (n < 0)
{
throw new ArgumentOutOfRangeException(nameof(serverName), "ServerName needs to be a full qualified domain name!");
}
var email = serverName.Substring(0, i) + '@' + serverName.Substring(i + 1);
var validator = new SmtpValidator(serverName, new MailAddress(email));
validator.Validate(address, true);
}
/// <summary>Checks the specified email address for validity with the mail server responsible for the address.</summary>
/// <param name="address">The email address to verify.</param>
public static void Verify(this MailAddress address)
{
var validator = new SmtpValidator(NetTools.HostName, new MailAddress(Environment.UserName + '@' + NetTools.HostName));
validator.Validate(address, true);
}