(VBScript) 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.

Note: This example requires Chilkat v11.0.0 or greater.

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

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

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

set imap = CreateObject("Chilkat.Imap")

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

' Connect to an IMAP server and convert the connection
' to TLS/SSL via STARTTLS.
success = imap.Connect("imap.example.com")
If (success = 0) Then
    outFile.WriteLine(imap.LastErrorText)
    WScript.Quit
End If

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

' Login
success = imap.Login("myLogin","myPassword")
If (success = 0) Then
    outFile.WriteLine(imap.LastErrorText)
    WScript.Quit
End If

' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = 0) Then
    outFile.WriteLine(imap.LastErrorText)
    WScript.Quit
End If

' Get the message IDs of all the emails in the mailbox
fetchUids = 1
set messageSet = CreateObject("Chilkat.MessageSet")
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = 0) Then
    outFile.WriteLine(imap.LastErrorText)
    WScript.Quit
End If

' Fetch the emails into a bundle object:
set bundle = CreateObject("Chilkat.EmailBundle")
headersOnly = 0
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = 0) Then
    outFile.WriteLine(imap.LastErrorText)
    WScript.Quit
End If

' Loop over the bundle and display the FROM and SUBJECT of each.
set email = CreateObject("Chilkat.Email")
i = 0
numEmails = bundle.MessageCount
Do While i < numEmails
    success = bundle.EmailAt(i,email)

    outFile.WriteLine(email.From)
    outFile.WriteLine(email.Subject)
    outFile.WriteLine("--")
    i = i + 1
Loop

' Disconnect from the IMAP server.
success = imap.Disconnect()

outFile.Close