hMailServer.Dns.DnsClient.ResolveMxIpAddressesAsync C# (CSharp) Méthode

        public async Task<List<IPAddress>> ResolveMxIpAddressesAsync(string domainName)
        {
            var hostNames = await ResolveMxHostNamesAsync(domainName);

            var result = new List<IPAddress>();

            foreach (var hostName in hostNames)
            {
                // TODO: Query for IPV6 as well.
                var dnsMessage = await _dnsClient.ResolveAsync(DomainName.Parse(hostName), RecordType.A);

                if (IsFailedQuery(dnsMessage))
                {
                    // TODO: Throw specific type
                    throw new Exception($"Dns query for {domainName} failed.");
                }

                var aRecords =
                    dnsMessage.AnswerRecords.OfType<ARecord>();

                result.AddRange(from record in aRecords
                                select record.Address);
            }

            return result;
        }