Fetch Oldest/Newest IMAP Email

Emails may be downloaded by sequence number. Assuming the selected mailbox is not empty, the oldest email is at sequence number 1, and the newest email is at sequence number N. The FetchSingle method may be used to download by sequence number.

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Dim imap As New Chilkat.Imap()

Dim success As Boolean

'  Anything unlocks the component and begins a fully-functional 30-day trial.
success = imap.UnlockComponent("Anything for 30-day trial")
If (success <> true) Then
    MsgBox(imap.LastErrorText)
    Exit Sub
End If


'  Connect to an IMAP server.
success = imap.Connect("mail.testemail.net")
If (success <> true) Then
    MsgBox(imap.LastErrorText)
    Exit Sub
End If


'  Login
success = imap.Login("***","***")
If (success <> true) Then
    MsgBox(imap.LastErrorText)
    Exit Sub
End If


'  Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success <> true) Then
    MsgBox(imap.LastErrorText)
    Exit Sub
End If


'  After selecting a mailbox, the NumMessages property
'  contains the number of emails in the selected mailbox.
Dim n As Long
n = imap.NumMessages

If (n > 0) Then


    '  The oldest email is always at sequence number 1.
    Dim isUid As Boolean
    isUid = false

    Dim oldestEmail As Chilkat.Email
    oldestEmail = imap.FetchSingle(1,isUid)
    If (Not (oldestEmail Is Nothing )) Then

        '  Display the From and Subject
        TextBox1.Text = TextBox1.Text & oldestEmail.FromAddress & vbCrLf
        TextBox1.Text = TextBox1.Text & oldestEmail.Subject & vbCrLf

        TextBox1.Text = TextBox1.Text & "--" & vbCrLf

    End If


    '  The newest email is at sequence number N:
    Dim newestEmail As Chilkat.Email
    newestEmail = imap.FetchSingle(n,isUid)
    If (Not (newestEmail Is Nothing )) Then

        '  Display the From and Subject
        TextBox1.Text = TextBox1.Text & newestEmail.FromAddress & vbCrLf
        TextBox1.Text = TextBox1.Text & newestEmail.Subject & vbCrLf


    End If


End If


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