PHP ActiveX

Send an SMTP RSET Command

Demonstrates the Chilkat MailMan.SmtpReset method, which sends an SMTP RSET command to the server. RSET resets the server-side state of the current mail transaction. This example opens a connection, sends RSET, and closes.

Background: During an SMTP session a message is built up across MAIL FROM and RCPT TO commands. If you need to abandon that partially-specified transaction — say an error occurred midway — RSET clears it without dropping the connection, so the same authenticated session can start a fresh message. It's a lightweight way to recover in-session rather than reconnecting.

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<?php

$success = 0;

//  Demonstrates the MailMan.SmtpReset method, which sends an SMTP RSET command to the server.
//  RSET resets the server-side state of the current mail transaction.

$mailman = new COM("Chilkat.MailMan");

//  Configure the SMTP server connection.
$mailman->SmtpHost = 'smtp.example.com';
$mailman->SmtpPort = 465;
$mailman->SmtpSsl = 1;
$mailman->SmtpUsername = 'user@example.com';
$mailman->SmtpPassword = 'myPassword';

//  Open the connection.

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

//  Reset the current SMTP mail transaction.
$success = $mailman->SmtpReset();
if ($success == 0) {
    print $mailman->LastErrorText . "\n";
    exit;
}

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

print 'Sent SMTP RSET.' . "\n";

?>