(Classic ASP) Get IMAP UID from Email Header

Demonstrates how to get the IMAP UID from an email header. After fetching an email or header using IMAP, the UID is contained in the ckx-imap-uid header field.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set imap = Server.CreateObject("Chilkat.Imap")

' Connect to an IMAP server.
' Use TLS
imap.Ssl = 1
imap.Port = 993
success = imap.Connect("imap.someMailServer.com")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' Login
success = imap.Login("login","password")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

fetchUids = 1
' Get the message UIDs of all the emails in the mailbox

set messageSet = Server.CreateObject("Chilkat.MessageSet")
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

set bundle = Server.CreateObject("Chilkat.EmailBundle")
headersOnly = 1
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' The UID of each fetched email header is available 
' in the ckx-imap-uid header field.
set email = Server.CreateObject("Chilkat.Email")
set msgSet1 = Server.CreateObject("Chilkat.MessageSet")
i = 0
szBundle = bundle.MessageCount
Do While i < szBundle
    success = bundle.EmailAt(i,email)

    ' Build a message set containing one UID
    uidStr = email.GetHeaderField("ckx-imap-uid")
    success = msgSet1.FromCompactString(uidStr)

    ' Move this message to some other folder.
    success = imap.MoveMessages(msgSet1,"someOtherFolder")
    If (success <> 1) Then
        Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
        ' Exit the loop...
        i = szBundle
    End If

    i = i + 1
Loop

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

%>
</body>
</html>