Java

End a POP3 Session Without Committing Deletions

Demonstrates the Chilkat MailMan.Pop3EndSessionNoQuit method, which closes the POP3 connection without sending the QUIT command. Pending deletion marks are not committed — messages marked with DELE during the session remain in the mailbox. This example marks a message for deletion and then abandons the session so the deletion does not take effect.

Background: POP3's deferred-deletion model effectively gives you a transaction: marks made with DELE are only applied when the session ends with QUIT. Ending without QUIT is therefore a rollback — useful if an error occurs mid-processing and you'd rather leave the mailbox untouched than risk deleting messages you failed to handle. Use Pop3EndSession when you do want the deletions committed.

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Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.MailMan;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the MailMan.Pop3EndSessionNoQuit method, which closes the POP3 connection
        // WITHOUT sending the QUIT command.  Pending deletion marks are not committed -- messages
        // marked with DELE during the session remain in the mailbox.

        MailMan mailman = new MailMan();

        // Configure the POP3 server connection.
        mailman.setMailHost("pop.example.com");
        mailman.setMailPort(995);
        mailman.setPopSsl(true);
        mailman.setPopUsername("user@example.com");
        mailman.setPopPassword("myPassword");

        try {
            mailman.pop3BeginSession();

            // Mark a message for deletion...
            mailman.deleteByMsgnum(1);

            // ...but end the session without QUIT, so the deletion is NOT committed and the message
            // remains in the mailbox.
            mailman.pop3EndSessionNoQuit();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Session closed without committing the pending deletion.");
    }
}