(AutoIt) Download an IMAP Message Set

Demonstrates how to read a set of IMAP emails.

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

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

Local $bSuccess = False

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

$oImap = ObjCreate("Chilkat.Imap")

; Connect using TLS.
$oImap.Ssl = True
$oImap.Port = 993
$bSuccess = $oImap.Connect("imap.example.com")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Authenticate
$bSuccess = $oImap.Login("email_account_login","email_account_password")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Select an IMAP mailbox
$bSuccess = $oImap.SelectMailbox("Inbox")
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Search for messages with the word "test" in the subject.
Local $bFetchUids = True

$oMessageSet = ObjCreate("Chilkat.MessageSet")
$bSuccess = $oImap.QueryMbx("Subject test",$bFetchUids,$oMessageSet)
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Download the messages in a single call to FetchMsgSet.
; 
; This only makes sense if the number of emails to be downloaded is not too large.  
; For example, you wouldn't want to download 10000 emails in a single call to FetchMsgSet.
; Why? For two reasons:  (1) It could potentially cause an out-of-memory condition, and 
; (2) it would take an extremely large amount of time.  The longer the amount of time,
; the greater the likelihood of some kind of external networking or server problem occuring,
; and if it happens, then you would need to re-download everything from the beginning again.
; For large numbers of emails, it's better to loop over the emails in the message set
; and download/process one at a time as shown here: Download IMAP Messages One at a Time
; Downloading one message at a time makes it possible to resume the downloads rather than restart the entire operation all over again.

; If the message set is reasonable in size, you can download all at once using FetchMsgSet:

ConsoleWrite("Number of messages = " & $oMessageSet.Count & @CRLF)

$oBundle = ObjCreate("Chilkat.EmailBundle")
Local $bHeadersOnly = False
$bSuccess = $oImap.FetchMsgSet($bHeadersOnly,$oMessageSet,$oBundle)
If ($bSuccess = False) Then
    ConsoleWrite($oImap.LastErrorText & @CRLF)
    Exit
EndIf

; Display the Subject and From of each email.
$oEmail = ObjCreate("Chilkat.Email")
Local $i = 0
Local $iNumEmails = $oBundle.MessageCount
While $i < $iNumEmails
    $oBundle.EmailAt($i,$oEmail)

    ConsoleWrite($oEmail.GetHeaderField("Date") & @CRLF)
    ConsoleWrite($oEmail.Subject & @CRLF)
    ConsoleWrite($oEmail.From & @CRLF)
    ConsoleWrite("--" & @CRLF)
    $i = $i + 1
Wend