(Visual FoxPro) IMAP STARTTLS (Explicit TLS/SSL)

The StartTls property is set to force the Connect method to automatically convert an connection to TLS/SSL via the STARTTLS IMAP command.

This is also known as "explicit TLS/SSL" as opposed to "implicit TLS/SSL". With implicit TLS/SSL, the IMAP client connects on the well-known IMAP TLS/SSL port 993 and the secure channel is immediately established. With explicit TLS/SSL, the IMAP client connects on the typical non-secure port (143 usually) and the converts the connection via the STARTTLS command.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loImap
LOCAL lnSuccess
LOCAL loMessageSet
LOCAL lnFetchUids
LOCAL loBundle
LOCAL i
LOCAL lnNumEmails
LOCAL loEmail

* This example assumes the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

loImap = CreateObject('Chilkat_9_5_0.Imap')

* Indicate that STARTTLS should be used to convert
* to a secure TLS/SSL connection:
loImap.StartTls = 1
loImap.Port = 143

* Connect to an IMAP server and convert the connection
* to TLS/SSL via STARTTLS.
lnSuccess = loImap.Connect("imap.someMailServer.com")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* The remainder of this example is the same as for 
* non-TLS/SSL...

* Login
lnSuccess = loImap.Login("myLogin","myPassword")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Select an IMAP mailbox
lnSuccess = loImap.SelectMailbox("Inbox")
IF (lnSuccess <> 1) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* We can choose to fetch UIDs or sequence numbers.
lnFetchUids = 1
* Get the message IDs of all the emails in the mailbox
loMessageSet = loImap.Search("ALL",lnFetchUids)
IF (loImap.LastMethodSuccess = 0) THEN
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Fetch the emails into a bundle object:

loBundle = loImap.FetchBundle(loMessageSet)
IF (loImap.LastMethodSuccess = 0) THEN
    RELEASE loMessageSet
    ? loImap.LastErrorText
    RELEASE loImap
    CANCEL
ENDIF

* Loop over the bundle and display the FROM and SUBJECT of each.
i = 0
lnNumEmails = loBundle.MessageCount
DO WHILE i < lnNumEmails
    loEmail = loBundle.GetEmail(i)
    ? loEmail.From
    ? loEmail.Subject
    ? "--"
    RELEASE loEmail
    i = i + 1
ENDDO

* Disconnect from the IMAP server.
lnSuccess = loImap.Disconnect()

RELEASE loMessageSet
RELEASE loBundle

RELEASE loImap