Xojo Plugin

How to Download Messages in MessageSet One at a Time

See more IMAP Examples

If a message set contains a huge number of emails, it's NOT a good idea to try to download all at once into an email bundle using a method such as FetchBundle. It's better to iterate over the messages in the set to download one by one. Xojo Plugin

Dim success As Boolean
success = False

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

Dim imap As New Chilkat.Imap

// Connect using TLS.
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.example.com")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// Authenticate
success = imap.Login("email_account_login","email_account_password")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// Select an IMAP mailbox
success = imap.SelectMailbox("Inbox")
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

// Search for messages and return a set of matching messages.
// (This example will simply search for ALL messages.)
Dim fetchUids As Boolean
fetchUids = True

Dim messageSet As New Chilkat.MessageSet
success = imap.QueryMbx("ALL",fetchUids,messageSet)
If (success = False) Then
    System.DebugLog(imap.LastErrorText)
    Return
End If

System.DebugLog("Number of messages = " + Str(messageSet.Count))

Dim email As New Chilkat.Email
Dim i As Int32
i = 0
While i < messageSet.Count
    success = imap.FetchEmail(False,messageSet.GetId(i),fetchUids,email)
    If (success = False) Then
        System.DebugLog(imap.LastErrorText)
        Return
    End If

    System.DebugLog(email.From + "; " + email.Subject)

    i = i + 1
Wend

System.DebugLog("OK")