VB.NET

How to Copy IMAP Mail to another IMAP Server

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

Dim success As Boolean = False

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

Dim imapSrc As New Chilkat.Imap

' Connect to our source IMAP server.
success = imapSrc.Connect("imap.example.com")
If (success = False) Then
    Debug.WriteLine(imapSrc.LastErrorText)
    Exit Sub
End If


' Login to the source IMAP server
success = imapSrc.Login("admin@chilkatsoft.com","myPassword")
If (success = False) Then
    Debug.WriteLine(imapSrc.LastErrorText)
    Exit Sub
End If


Dim imapDest As New Chilkat.Imap

' Connect to our destination IMAP server.
success = imapDest.Connect("mail.example-code.com")
If (success = False) Then
    Debug.WriteLine(imapDest.LastErrorText)
    Exit Sub
End If


' Login to the destination IMAP server
success = imapDest.Login("myLogin","myPassword")
If (success = False) Then
    Debug.WriteLine(imapDest.LastErrorText)
    Exit Sub
End If


' Select an IMAP mailbox on the source IMAP server
success = imapSrc.SelectMailbox("Inbox")
If (success = False) Then
    Debug.WriteLine(imapSrc.LastErrorText)
    Exit Sub
End If


' After selecting a mailbox, the NumMessages property will
' be updated to reflect the total number of emails in the mailbox:
Debug.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 using sequence numbers
Dim sbMime As New Chilkat.StringBuilder
Dim seqNum As Integer
For seqNum = 1 To 10
    sbMime.Clear()
    success = imapSrc.FetchSingleAsMimeSb(seqNum,False,sbMime)
    If (success = False) Then
        Debug.WriteLine(imapSrc.LastErrorText)
        Exit Sub
    End If


    success = imapDest.AppendMimeWithFlagsSb("Inbox",sbMime,False,False,False,False)
    If (success = False) Then
        Debug.WriteLine(imapDest.LastErrorText)
        Exit Sub
    End If

Next

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