VB.NET

Delete Email Individually (One at a time) from an IMAP Mailbox

Downloads email from an IMAP mailbox and deletes emails individually (one by one). VB.NET

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


' We can choose to fetch UIDs or sequence numbers.
Dim fetchUids As Boolean = True

' Get the message IDs of all the emails in the mailbox
Dim messageSet As New Chilkat.MessageSet
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Fetch the emails into a bundle object:
Dim bundle As New Chilkat.EmailBundle
Dim headersOnly As Boolean = False
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' To mark a complete set of emails for deletion, call SetFlags:
success = imap.SetFlags(messageSet,"Deleted",1)
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Messages can also be marked for deletion individually:
' Loop over the bundle and mark each message for deletion.
Dim email As New Chilkat.Email
Dim i As Integer = 0
Dim numEmails As Integer = bundle.MessageCount
While i < numEmails
    bundle.EmailAt(i,email)

    Debug.WriteLine(email.From)
    Debug.WriteLine(email.Subject)

    ' To delete this email, set the "Deleted" flag to 1.
    ' The email is not actually deleted until Expunge or
    ' ExpungeAndClose is called.
    success = imap.SetMailFlag(email,"Deleted",1)
    If (success = False) Then
        Debug.WriteLine(imap.LastErrorText)
        Exit Sub
    End If


    Debug.WriteLine("--")

    i = i + 1
End While

success = imap.ExpungeAndClose()
If (success = False) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


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