Lianja

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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llSuccess = .F.

//  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.

loMailman = createobject("CkMailMan")

//  Configure the POP3 server connection.
loMailman.MailHost = "pop.example.com"
loMailman.MailPort = 995
loMailman.PopSsl = .T.
loMailman.PopUsername = "user@example.com"
loMailman.PopPassword = "myPassword"

//  Begin a POP3 session.

llSuccess = loMailman.Pop3BeginSession()
if (llSuccess = .F.) then
    ? loMailman.LastErrorText
    release loMailman
    return
endif

//  Send a NOOP to keep the session alive.
llSuccess = loMailman.Pop3Noop()
if (llSuccess = .F.) then
    ? loMailman.LastErrorText
    release loMailman
    return
endif

? "POP3 NOOP succeeded."


release loMailman