PHP ActiveX

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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<?php

$success = 0;

//  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 = new COM("Chilkat.MailMan");

//  Configure the POP3 server connection.
$mailman->MailHost = 'pop.example.com';
$mailman->MailPort = 995;
$mailman->PopSsl = 1;
$mailman->PopUsername = 'user@example.com';
$mailman->PopPassword = 'myPassword';

$success = $mailman->Pop3BeginSession();
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

//  Mark a message for deletion...
$success = $mailman->DeleteByMsgnum(1);
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

//  ...but end the session without QUIT, so the deletion is NOT committed and the message
//  remains in the mailbox.
$success = $mailman->Pop3EndSessionNoQuit();
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

print 'Session closed without committing the pending deletion.' . "\n";

?>