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Send a POP3 NOOP Command

Demonstrates the Chilkat MailMan.Pop3Noop method, which sends a POP3 NOOP command to the server. NOOP does nothing except elicit a positive response, which is useful for keeping a session alive or verifying the connection is still responsive. This example begins a POP3 session and sends a NOOP.

Background: NOOP ("no operation") is a standard keep-alive across many internet protocols. Servers often drop idle connections after a timeout; sending a periodic NOOP resets that timer so a long-running session stays open. It also serves as a cheap "are you still there?" probe — a successful reply confirms the socket and the authenticated session are still healthy.

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Local $bSuccess = False

;  Demonstrates the MailMan.Pop3Noop method, which sends a POP3 NOOP command to the server.
;  NOOP does nothing except elicit a positive response, which is useful for keeping a
;  session alive or verifying the connection is still responsive.

$oMailman = ObjCreate("Chilkat.MailMan")

;  Configure the POP3 server connection.
$oMailman.MailHost = "pop.example.com"
$oMailman.MailPort = 995
$oMailman.PopSsl = True
$oMailman.PopUsername = "user@example.com"
$oMailman.PopPassword = "myPassword"

;  Begin a POP3 session.

$bSuccess = $oMailman.Pop3BeginSession()
If ($bSuccess = False) Then
    ConsoleWrite($oMailman.LastErrorText & @CRLF)
    Exit
EndIf

;  Send a NOOP to keep the session alive.
$bSuccess = $oMailman.Pop3Noop()
If ($bSuccess = False) Then
    ConsoleWrite($oMailman.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("POP3 NOOP succeeded." & @CRLF)