Java

Get the Number of IMAP Attachments

Demonstrates the Chilkat Imap.GetMailNumAttach method, which returns the number of ordinary attachments on a message. The only argument is the Email. This example fetches only the headers and reports the attachment count.

Background: A header-only fetch downloads no attachment bodies, so the Email object's own downloaded-attachment count can be 0. GetMailNumAttach instead reads the ckx-imap-numAttach metadata, giving the true count — which is what you want when building a message list that shows whether each message has attachments.

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Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Email;
import com.chilkatsoft.chilkat2.Imap;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the Imap.GetMailNumAttach method, which returns the number of ordinary
        // attachments on a message.  The only argument is the Email.

        Imap imap = new Imap();

        imap.setSsl(true);
        imap.setPort(993);

        try {
            imap.connect("imap.example.com");

            imap.login("user@example.com", "myPassword");

            imap.selectMailbox("Inbox");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
        // metadata describing the attachments is present, so the attachment info methods still work.
        boolean headersOnly = true;
        boolean useUid = false;
        int seqNum = 1;
        Email email = new Email();
        try {
            imap.fetchEmail(headersOnly, seqNum, useUid, email);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int numAttach = imap.getMailNumAttach(email);
        System.out.println("This message has " + numAttach + " attachment(s).");

        try {
            imap.disconnect();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }
    }
}