public bool IsDomainExists(string name)
{
if (!IsAdmin)
{
throw new SecurityException("Need admin privileges.");
}
if (string.IsNullOrEmpty(name))
{
throw new ArgumentException(@"Invalid domain name.", "name");
}
if (name.Length > 255)
{
throw new ArgumentException(@"Domain name exceed limitation of 255 characters.", "name");
}
if (!Parser.IsDomainValid(name))
{
throw new ArgumentException(@"Incorrect domain name.", "name");
}
var domainName = name.ToLowerInvariant();
var isExists = MailServer.IsDomainExists(domainName);
return(isExists);
}
