(VB.NET) IMAP Delete Old Email (before a specified date)

Demonstrates how to delete email older than a particular date.

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
' Use your IMAP server domain.  This example 
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


' Get message ID's for emails older than 1/1/2025
Dim fetchUids As Boolean = True
Dim messageSet As New Chilkat.MessageSet
success = imap.QueryMbx("SENTBEFORE 01-Jan-2025",fetchUids,messageSet)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' If desired, we can examine the Subject of each email to be deleted..
Dim email As New Chilkat.Email
Dim i As Integer = 0
Dim count As Integer = messageSet.Count
Dim headerOnly As Boolean = True

While i < count
    success = imap.FetchEmail(headerOnly,messageSet.GetId(i),True,email)
    If (success = False) Then
        Debug.WriteLine(imap.LastErrorText)
        Exit Sub
    End If


    Debug.WriteLine(email.LocalDateStr)
    Debug.WriteLine(email.Subject)

    i = i + 1
End While

' Set the Deleted flag for each message:
success = imap.SetFlags(messageSet,"Deleted",1)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Expunge and close the mailbox.
success = imap.ExpungeAndClose()
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


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