(VB.NET) Subscribe to Mailboxes and List Subscribed Mailboxes

Demonstrates how to list subscribed mailboxes, and unsubscribe/subscribe to a mailbox.

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


' First examine the already subscribed mailboxes.
Dim refName As String = ""
Dim wildcardedMailbox As String = "*"
Dim subscribed As Boolean = True

Dim mboxes As New Chilkat.Mailboxes
success = imap.MbxList(subscribed,refName,wildcardedMailbox,mboxes)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


Dim i As Integer = 0
While i < mboxes.Count
    Debug.WriteLine(mboxes.GetName(i))
    i = i + 1
End While
Debug.WriteLine("----")

' Sample output.

' INBOX
' INBOX/recent
' INBOX/misc
' INBOX/misc/solutions
' ...
' Outbox
' Deleted Items
' Sent Items
' Drafts
' Junk E-mail
' Trash
' Sent
' Templates

' Let's unsubscribe to "INBOX/misc/solutions".
success = imap.Unsubscribe("INBOX/misc/solutions")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is missing.
success = imap.MbxList(subscribed,"","INBOX/misc*",mboxes)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


i = 0
While i < mboxes.Count
    Debug.WriteLine(mboxes.GetName(i))
    i = i + 1
End While
Debug.WriteLine("----")

' Re-subscribe to "INBOX/misc/solutions".
success = imap.Subscribe("INBOX/misc/solutions")
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Get the list of subscribed mailboxes again to verify that "INBOX/misc/solutions" is back in the list.
success = imap.MbxList(subscribed,"","INBOX/misc*",mboxes)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


i = 0
While i < mboxes.Count
    Debug.WriteLine(mboxes.GetName(i))
    i = i + 1
End While
Debug.WriteLine("----")

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