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(Java) IMAP Download All Email One at a Time

Demonstrates how to download every email in an IMAP mailbox one at a time as a MIME string or as an email object. (The MIME contains the full contents of the email including all attachments.)

Chilkat Java Downloads

Java Libs for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

Java Libs for Android

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[])
  {
    CkImap imap = new CkImap();

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

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

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

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

    // Once the mailbox is selected, the NumMessages property
    // will contain the number of messages in the mailbox.
    // You may loop from 1 to NumMessages to
    // fetch each message by sequence number.

    boolean bUid = false;
    String mimeStr;
    int i;
    int n = imap.get_NumMessages();
    for (i = 1; i <= n; i++) {

        // Download the email by sequence number.
        mimeStr = imap.fetchSingleAsMime(i,bUid);

        // ... your application may process each MIME string...
        }

    // An alternative is to download each email in the form of an
    // email object, like this:
    CkEmail email;
    for (i = 1; i <= n; i++) {

        // Download the email by sequence number.
        email = imap.FetchSingle(i,bUid);

        // ... your application may process the email object...

        }

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

 

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