/// <summary>
/// Send the data to the server
/// </summary>
/// <param name="data">Data to send to the server</param>
/// <param name="failedCallback">Action to call if fails to send.</param>
private async Task <MantaOutboundClientSendResult> ExecDataAsync(string data)
{
await SmtpStream.WriteLineAsync("DATA");
string response = await SmtpStream.ReadAllLinesAsync(); // Data response or Mail From if pipelining
// If the remote MX supports pipelining then we need to check the MAIL FROM and RCPT to responses.
if (_CanPipeline)
{
// Check MAIL FROM OK.
if (!response.StartsWith("250"))
{
await SmtpStream.ReadAllLinesAsync(); // RCPT TO
await SmtpStream.ReadAllLinesAsync(); // DATA
return(new MantaOutboundClientSendResult(MantaOutboundClientResult.RejectedByRemoteServer, response, _VirtualMta, _MXRecord));
}
// Check RCPT TO OK.
response = await SmtpStream.ReadAllLinesAsync();
if (!response.StartsWith("250"))
{
await SmtpStream.ReadAllLinesAsync(); // DATA
return(new MantaOutboundClientSendResult(MantaOutboundClientResult.RejectedByRemoteServer, response, _VirtualMta, _MXRecord));
}
// Get the Data Command response.
response = await SmtpStream.ReadAllLinesAsync();
}
if (!response.StartsWith("354"))
{
return(new MantaOutboundClientSendResult(MantaOutboundClientResult.RejectedByRemoteServer, response, _VirtualMta, _MXRecord));
}
// Send the message data using the correct transport MIME
SmtpStream.SetSmtpTransportMIME(_DataTransportMime);
await SmtpStream.WriteAsync(data, false);
await SmtpStream.WriteAsync(MtaParameters.NewLine + "." + MtaParameters.NewLine, false);
// Data done so return to 7-Bit mode.
SmtpStream.SetSmtpTransportMIME(SmtpTransportMIME._7BitASCII);
response = await SmtpStream.ReadAllLinesAsync();
if (!response.StartsWith("250"))
{
return(new MantaOutboundClientSendResult(MantaOutboundClientResult.RejectedByRemoteServer, response, _VirtualMta, _MXRecord));
}
_MessagesAccepted++;
return(new MantaOutboundClientSendResult(MantaOutboundClientResult.Success, response, _VirtualMta, _MXRecord));
}
/// <summary>
/// Send the data to the server
/// </summary>
/// <param name="data">Data to send to the server</param>
/// <param name="failedCallback">Action to call if fails to send.</param>
public async Task <bool> ExecDataAsync(string data, Action <string> failedCallback, Func <string, Task> successCallbackAsync)
{
if (!base.Connected)
{
return(false);
}
_LastActive = DateTime.UtcNow;
IsActive = true;
await SmtpStream.WriteLineAsync("DATA");
string response = await SmtpStream.ReadAllLinesAsync();
// If the remote MX supports pipelining then we need to check the MAIL FROM and RCPT to responses.
if (_CanPipeline)
{
// Check MAIL FROM OK.
if (!response.StartsWith("250"))
{
failedCallback(response);
IsActive = false;
return(false);
}
// Check RCPT TO OK.
response = await SmtpStream.ReadAllLinesAsync();
if (!response.StartsWith("250"))
{
failedCallback(response);
IsActive = false;
return(false);
}
// Get the Data Command response.
response = await SmtpStream.ReadAllLinesAsync();
}
_LastActive = DateTime.UtcNow;
if (!response.StartsWith("354"))
{
failedCallback(response);
IsActive = false;
return(false);
}
// Increment the data commands as server has responded positiely.
_DataCommands++;
// Send the message data using the correct transport MIME
SmtpStream.SetSmtpTransportMIME(_DataTransportMime);
await SmtpStream.WriteAsync(data, false);
await SmtpStream.WriteAsync(MtaParameters.NewLine + "." + MtaParameters.NewLine, false);
_LastActive = DateTime.UtcNow;
// Data done so return to 7-Bit mode.
SmtpStream.SetSmtpTransportMIME(SmtpTransportMIME._7BitASCII);
response = await SmtpStream.ReadAllLinesAsync();
_LastActive = DateTime.UtcNow;
IsActive = false;
if (!response.StartsWith("250"))
{
failedCallback(response);
}
else
{
await successCallbackAsync(response);
}
// If max messages have been sent quit the connection.
if (_DataCommands >= OutboundRuleManager.GetMaxMessagesPerConnection(MXRecord, MtaIpAddress))
{
ExecQuitAsync().Wait();
}
return(true);
}
