/// <summary>
/// Resolve Mx address
/// </summary>
/// <param name="a_host">Host</param>
/// <returns>List of Mx address</returns>
public Tuple <IList <string>, string> Resolve(string a_host)
{
IList <string> results = new List <string>();
DnsClient.MXHost[] mxCollection;
try
{
mxCollection = DnsClient.LookupMX(a_host);
}
catch (Exception exception)
{
return(new Tuple <IList <string>, string>(results, exception.ToString()));
}
foreach (var row in mxCollection.OrderBy(a_c => a_c.Preference))
{
if (row.IPAddresses != null)
{
foreach (IPAddress ipAddress in row.IPAddresses)
{
results.Add(ipAddress.ToString());
}
}
}
return(new Tuple <IList <string>, string>(results, string.Empty));
}
public static bool IsMxSettedUpCorrectForDomain(string domain_name, string mx_record, ILogger logger = null)
{
try
{
var domain_mx_records = DnsClient.LookupMX(domain_name);
if (domain_mx_records == null)
{
throw new ArgumentException("MX record on your domain is missing.");
}
return(domain_mx_records.Any(re => re.HostName == mx_record));
}
catch (Exception ex)
{
if (logger != null)
{
logger.Debug("DnsClient.LookupMX: domain: '{0}' mx: '{1}'\r\nException: {2}",
domain_name, mx_record, ex.ToString());
}
return(false);
}
}