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Start IMAP IDLE to Monitor a Mailbox

Demonstrates the Chilkat Imap.IdleStart method, which sends the IMAP IDLE command to begin listening for unsolicited mailbox updates. It takes no arguments. A mailbox must first be selected, and the server must advertise the IDLE capability.

Background: IDLE is IMAP's push mechanism: instead of polling for new mail, the client tells the server "notify me when something changes," and the server pushes updates as they happen. This is what enables near-instant new-mail alerts. While IDLE is active, no other IMAP command may be sent on that connection — call IdleDone to leave IDLE before issuing other commands.

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llSuccess = .F.

//  Demonstrates the Imap.IdleStart method, which sends the IMAP IDLE command to begin listening
//  for unsolicited mailbox updates.  It takes no arguments.  A mailbox must be selected and the
//  server must advertise the IDLE capability.

loImap = createobject("CkImap")

loImap.Ssl = .T.
loImap.Port = 993

llSuccess = loImap.Connect("imap.example.com")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

llSuccess = loImap.Login("user@example.com","myPassword")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

llSuccess = loImap.SelectMailbox("Inbox")
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

//  Enter IDLE mode to monitor the mailbox for changes (new mail, deletions, flag changes).
llSuccess = loImap.IdleStart()
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

? "IDLE mode started."

//  While IDLE is active, no other IMAP command may be sent.  End IDLE before doing more work.
llSuccess = loImap.IdleDone()
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif

llSuccess = loImap.Disconnect()
if (llSuccess = .F.) then
    ? loImap.LastErrorText
    release loImap
    return
endif



release loImap