(VB.NET) Download MIME Source of Emails in IMAP Mailbox

Demonstrates how to download the MIME source for emails on an IMAP server.

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

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Dim success As Boolean = False

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

Dim imap As New Chilkat.Imap

' Connect to an IMAP server.
' Use TLS
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Login
success = imap.Login("myLogin","myPassword")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' The NumMessages property contains the number of messages in the selected mailbox.
Dim numMessages As Integer = imap.NumMessages
If (numMessages = 0) Then
    Debug.WriteLine("No messages exist in the Inbox.")
    Exit Sub
End If


Dim sbMime As New Chilkat.StringBuilder
Dim seqNum As Integer
For seqNum = 1 To numMessages
    sbMime.Clear()
    success = imap.FetchSingleAsMimeSb(seqNum,False,sbMime)
    If (success = False) Then
        Debug.WriteLine(imap.LastErrorText)
        Exit Sub
    End If


    ' The MIME source of the downloaded email is contained in sbMime.
Next

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