Dart

Send a Raw POP3 Command

Demonstrates the Chilkat MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3 server and returns the server's response. The second argument specifies the charset to use if the command contains non-US-ASCII characters. This example sends the POP3 STAT command within an open session.

Background: POP3 is a simple line-based text protocol — the client sends short commands like STAT, LIST, UIDL, or RETR and the server replies with +OK or -ERR. This method is an escape hatch for issuing a command Chilkat doesn't wrap directly, or a server-specific extension. Note that the session must already be open, since a raw command assumes an authenticated connection.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the MailMan.Pop3SendRawCommand method, which sends a raw command to the POP3
  // server and returns the server's response.  The second argument is the charset used if the
  // command contains non-US-ASCII characters.

  final mailman = CkMailMan();

  // Configure the POP3 server connection.
  mailman.mailHost = 'pop.example.com';
  mailman.mailPort = 995;
  mailman.popSsl = true;
  mailman.popUsername = 'user@example.com';
  mailman.popPassword = 'myPassword';

  try {
    mailman.pop3BeginSession();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Send the raw POP3 STAT command, which returns the message count and maildrop size.
  final String response;
  try {
    response = mailman.pop3SendRawCommand('STAT', 'us-ascii');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('STAT response: $response');

  try {
    mailman.pop3EndSession();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }
}