(Java) Download MIME Source of Emails in IMAP Mailbox

Demonstrates how to download the MIME source for emails on an IMAP server.

Note: This example requires Chilkat v11.0.0 or greater.

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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;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkImap imap = new CkImap();

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    success = imap.Connect("imap.example.com");
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Login
    success = imap.Login("myLogin","myPassword");
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("Inbox");
    if (success == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // The NumMessages property contains the number of messages in the selected mailbox.
    int numMessages = imap.get_NumMessages();
    if (numMessages == 0) {
        System.out.println("No messages exist in the Inbox.");
        return;
        }

    CkStringBuilder sbMime = new CkStringBuilder();
    int seqNum;
    for (seqNum = 1; seqNum <= numMessages; seqNum++) {
        sbMime.Clear();
        success = imap.FetchSingleAsMimeSb(seqNum,false,sbMime);
        if (success == false) {
            System.out.println(imap.lastErrorText());
            return;
            }

        // The MIME source of the downloaded email is contained in sbMime.
        }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();
  }
}