(VBScript) How to Copy IMAP Mail to another IMAP Server

Demonstrates how to copy the entire contents of an IMAP mailbox to another IMAP server.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Imap")
set imapSrc = CreateObject("Chilkat.Imap")

' Connect to our source IMAP server.
success = imapSrc.Connect("imap.someMailServer.com")
If (success <> 1) Then
    outFile.WriteLine(imapSrc.LastErrorText)
    WScript.Quit
End If

' Login to the source IMAP server
success = imapSrc.Login("admin@chilkatsoft.com","myPassword")
If (success <> 1) Then
    outFile.WriteLine(imapSrc.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Imap")
set imapDest = CreateObject("Chilkat.Imap")

' Connect to our destination IMAP server.
success = imapDest.Connect("mail.example-code.com")
If (success <> 1) Then
    outFile.WriteLine(imapDest.LastErrorText)
    WScript.Quit
End If

' Login to the destination IMAP server
success = imapDest.Login("myLogin","myPassword")
If (success <> 1) Then
    outFile.WriteLine(imapDest.LastErrorText)
    WScript.Quit
End If

' Select an IMAP mailbox on the source IMAP server
success = imapSrc.SelectMailbox("Inbox")
If (success <> 1) Then
    outFile.WriteLine(imapSrc.LastErrorText)
    WScript.Quit
End If

' After selecting a mailbox, the NumMessages property will
' be updated to reflect the total number of emails in the mailbox:
outFile.WriteLine(imapSrc.NumMessages)

' The emails in the mailbox will always have sequence numbers
' ranging from 1 to NumMessages.

' This example will copy the first 10 messages.
' We'll leave it up to you to write code to copy
' the entire sequence range in reasonable size chunks.
startSeqNum = 1
msgCount = 10

' sa is a Chilkat.StringArray
Set sa = imapSrc.FetchSequenceAsMime(startSeqNum,msgCount)
If (imapSrc.LastMethodSuccess <> 1) Then
    outFile.WriteLine(imapSrc.LastErrorText)
    WScript.Quit
End If

For i = 0 To sa.Count - 1
    success = imapDest.AppendMime("Inbox",sa.GetString(i))
    If (success <> 1) Then
        outFile.WriteLine(imapDest.LastErrorText)
        WScript.Quit
    End If

Next

' Disconnect from the IMAP servers.
success = imapSrc.Disconnect()
success = imapDest.Disconnect()

outFile.Close