Rust

Delete a Bundle of POP3 Messages

Demonstrates the Chilkat MailMan.DeleteBundle method, which deletes POP3 messages using the UIDLs stored in the X-UIDL headers of the Email objects in an EmailBundle. An email without an X-UIDL header is skipped. This example fetches all messages and deletes them.

Background: DeleteBundle is the batch version of DeleteEmail: it marks every message in a downloaded bundle for deletion in one call. A typical "download and clear the mailbox" workflow is to fetch all messages, process them, then delete the whole bundle. Because a bundle can be filtered or built selectively, you can also delete just the subset you no longer need. The deletions commit when the POP3 session ends.

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// Demonstrates the MailMan.DeleteBundle method, which deletes POP3 messages using the UIDLs
// stored in the X-UIDL headers of the Email objects in an EmailBundle.  An email without an
// X-UIDL header is skipped.

let mailman = chilkat::MailMan::new();

// Configure the POP3 server connection.
mailman.set_mail_host("pop.example.com");
mailman.set_mail_port(995);
mailman.set_pop_ssl(true);
mailman.set_pop_username("user@example.com");
mailman.set_pop_password("myPassword");

// Fetch all messages (headers are enough; each carries an X-UIDL header).
let bundle = chilkat::EmailBundle::new();

if mailman.fetch_all(true, true, 0, &bundle).is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

// Delete every message in the bundle.
if mailman.delete_bundle(&bundle).is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

// Unless the ImmediateDelete property is set to true, the messages are only marked for
// deletion.  End the POP3 session (which sends the QUIT command) to commit the deletions.
if mailman.pop3_end_session().is_err() {
    println!("{}", mailman.last_error_text());
    return;
}

println!("Deleted {} messages from the POP3 server.", bundle.message_count());

// Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
// connects and authenticates -- using the property settings above -- whenever a server
// operation requires it.  Calling the explicit connect/authenticate methods can still be
// helpful to determine whether a failure occurs while connecting or while authenticating.