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(VB.NET UWP/WinRT) 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 Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

' 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.
Dim success As Boolean = Await imapSrc.ConnectAsync("imap.someMailServer.com")
If (success <> True) Then
    Debug.WriteLine(imapSrc.LastErrorText)
    Exit Sub
End If


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


Dim imapDest As New Chilkat.Imap

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


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



' Select an IMAP mailbox on the source IMAP server
success = Await imapSrc.SelectMailboxAsync("Inbox")
If (success <> True) 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.
' We'll leave it up to you to write code to copy
' the entire sequence range in reasonable size chunks.
Dim startSeqNum As Integer = 1
Dim msgCount As Integer = 10

Dim sa As Chilkat.StringArray
sa = Await imapSrc.FetchSequenceAsMimeAsync(startSeqNum,msgCount)
If (imapSrc.LastMethodSuccess <> True) Then
    Debug.WriteLine(imapSrc.LastErrorText)
    Exit Sub
End If


Dim i As Integer
For i = 0 To sa.Count - 1
    success = Await imapDest.AppendMimeAsync("Inbox",sa.GetString(i))
    If (success <> True) Then
        Debug.WriteLine(imapDest.LastErrorText)
        Exit Sub
    End If

Next


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

 

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