(VB.NET) IMAP Capability

Demonstrates how to send the CAPABILITY command to request a listing of capabilities that the IMAP server supports. A capability name which begins with "AUTH=" indicates that the server supports that particular authentication mechanism.

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

Dim imap As New Chilkat.Imap

' Use TLS
imap.Ssl = True
imap.Port = 993
Dim success As Boolean = imap.Connect("MY-IMAP-DOMAIN")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Authenticate
success = imap.Login("MY-IMAP-LOGIN","MY-IMAP-PASSWORD")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Get the list of capabilities:
Dim caps As String = imap.Capability()
Debug.WriteLine("Capabilities: " & caps)

' Here is an example of the string returned:
' * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 
' UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH UTF8=ACCEPT APPENDLIMIT=35882577
' LIST-EXTENDED LIST-STATUS

' Chilkat v9.5.0.58 introduces the HasCapability method to
' check to see if a particular capability exists:
If (imap.HasCapability("QUOTA",caps) = True) Then
    Debug.WriteLine("IMAP server supports the QUOTA extension.")
End If


If (imap.HasCapability("IDLE",caps) = True) Then
    Debug.WriteLine("IMAP server supports IDLE.")
End If



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