(VB.NET) Copy an Email from One Mailbox to Another

Copies an email from one IMAP folder to another. After running this example, copies of the email will be present in both source and destination folders.

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

' This example copies an email from one mailbox to another.
Dim imap As New Chilkat.Imap

' Turn on session logging:
imap.KeepSessionLog = True

' Connect to an IMAP server.
' Use TLS
imap.Ssl = True
imap.Port = 993
Dim success As Boolean = imap.Connect("imap.someMailServer.com")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Login
success = imap.Login("***","***")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox.testing.a")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


Dim messageSet As Chilkat.MessageSet
Dim fetchUids As Boolean = True

' Get the message IDs for all emails having "Re:" in the subject.
messageSet = imap.Search("SUBJECT Re:",fetchUids)
If (imap.LastMethodSuccess <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Copy the messages from "Inbox.testing.a" to "Inbox.testing.b" in one call to CopyMultiple:
success = imap.CopyMultiple(messageSet,"Inbox.testing.b")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Alternatively, loop over each message in the set and
' copy each separately:
Dim i As Integer
Dim n As Integer
n = messageSet.Count
If (n > 0) Then
    For i = 0 To n - 1
        Dim msgId As Integer = messageSet.GetId(i)
        Dim isUid As Boolean = messageSet.HasUids
        success = imap.Copy(msgId,isUid,"Inbox.testing.c")
        If (success <> True) Then
            Debug.WriteLine(imap.LastErrorText)
            Exit Sub
        End If

    Next
End If


' Display the session log.
Debug.WriteLine(imap.SessionLog)

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