(Visual Basic 6.0) Download Unread Email from IMAP Mailbox

Download unread email messages from an IMAP mailbox.

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

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

Dim success As Long
success = 0

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

Dim imap As New ChilkatImap

' Connect to an IMAP server.
' Use TLS
imap.Ssl = 1
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

' Login
success = imap.Login("admin@chilkatsoft.com","myPassword")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

' Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

' Find emails marked as seen or not already seen:
Dim seenSearch As String
seenSearch = "SEEN"
Dim notSeenSearch As String
notSeenSearch = "NOT SEEN"

' Get the set of unseen message UIDs
Dim fetchUids As Long
fetchUids = 1
Dim messageSet As New MessageSet
success = imap.QueryMbx(notSeenSearch,fetchUids,messageSet)
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

' Fetch the unseen emails into a bundle object:
Dim bundle As New ChilkatEmailBundle
Dim headersOnly As Long
headersOnly = 0
success = imap.FetchMsgSet(headersOnly,messageSet,bundle)
If (success = 0) Then
    Debug.Print imap.LastErrorText
    Exit Sub
End If

' Display the Subject and From of each email.
Dim email As New ChilkatEmail
Dim i As Long
i = 0
Dim numEmails As Long
numEmails = bundle.MessageCount
Do While i < numEmails
    success = bundle.EmailAt(i,email)

    Debug.Print email.GetHeaderField("Date")
    Debug.Print email.Subject
    Debug.Print email.From
    Debug.Print "--"
    i = i + 1
Loop

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