Java

Connect to an IMAP Server

Demonstrates the Chilkat Imap.Connect method, which establishes a TCP connection to the IMAP server but does not authenticate. The argument may be a hostname, IPv4, or IPv6 address; configure Ssl and Port first. This example connects with implicit TLS, then logs in and disconnects.

Background: IMAP (Internet Message Access Protocol) is the protocol for accessing mail that stays on the server — unlike POP3, which typically downloads and removes it. That server-side model is what lets multiple devices see the same mailboxes, folders, and read/unread state. A session starts by connecting (usually implicit TLS on port 993), then authenticating — Connect performs only the first step, so it is always followed by Login.

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Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    //  Demonstrates the Imap.Connect method, which establishes a TCP connection to the IMAP
    //  server but does not authenticate.  Call Login after connecting to authenticate.

    CkImap imap = new CkImap();

    //  Use implicit TLS on the standard IMAPS port.
    imap.put_Ssl(true);
    imap.put_Port(993);

    //  Establish the connection to the IMAP server (no authentication yet).
    success = imap.Connect("imap.example.com");
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    System.out.println("Connected to the IMAP server.");

    //  Authenticate the session.
    success = imap.Login("user@example.com","myPassword");
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    //  Disconnect when finished.
    success = imap.Disconnect();
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }
  }
}