(Classic ASP) Determine the Number of Unseen Email Messages

Demonstrates how to determine how many unseen messages exist in an email account on an IMAP server.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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' 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 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 <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' Login
success = imap.Login("***","***")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

' After selecting the mailbox. the total number of emails
' is immediately available:
totalNum = imap.NumMessages
Response.Write "<pre>" & Server.HTMLEncode( "Num messages = " & totalNum) & "</pre>"

' To determine the number of unseen messages, a call
' to Search is required, which returns the set of UIDs
' of all unseen messages.

' We can choose to fetch UIDs or sequence numbers.
fetchUids = 1

' messageSet is a Chilkat.MessageSet
Set messageSet = imap.Search("UNSEEN",fetchUids)
If (imap.LastMethodSuccess = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( imap.LastErrorText) & "</pre>"
    Response.End
End If

numUnseen = messageSet.Count
Response.Write "<pre>" & Server.HTMLEncode( numUnseen) & "</pre>"

Response.Write "<pre>" & Server.HTMLEncode( "UIDs ----") & "</pre>"

' Display the UIDs
i = 0
Do While i < messageSet.Count
    Response.Write "<pre>" & Server.HTMLEncode( messageSet.GetId(i)) & "</pre>"
    i = i + 1
Loop

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


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