PowerBuilder

POP3 using HTTP Proxy

Demonstrates how to communicate with a POP3 server through an HTTP proxy. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Mailman
oleobject loo_Bundle
integer li_KeepOnServer
integer li_HeadersOnly
integer li_NumBodyLines
oleobject loo_Email
integer i

li_Success = 0

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

// The mailman object is used for receiving (POP3) 
// and sending (SMTP) email.
loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat.MailMan")
if li_rc < 0 then
    destroy loo_Mailman
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// To connect through an HTTP proxy, set the HttpProxyHostname
// and HttpProxyPort properties to the hostname (or IP address)
// and port of the HTTP proxy.  Typical port numbers used by
// HTTP proxy servers are 3128 and 8080.
loo_Mailman.HttpProxyHostname = "www.my-http-proxy.com"
loo_Mailman.HttpProxyPort = 3128

// Important:  Your HTTP proxy server must allow non-HTTP
// traffic to pass.  Otherwise this does not work.

// Set the POP3 server's hostname
loo_Mailman.MailHost = "pop.example.com"

// Set the POP3 login/password.
loo_Mailman.PopUsername = "myLogin"
loo_Mailman.PopPassword = "myPassword"

// Copy the all email from the user's POP3 mailbox 
// into a bundle object.  The email remains on the server.
// 
// NOTE: All methods that communicate with a POP3 server
// will automatically connect and authenticate (i.e. login)
// if not already connected.  The connection will remain
// open after the method call returns so that subsequent
// calls do not need to re-establish the connection.
// In this case, the connection is established via the HTTP
// proxy.
loo_Bundle = create oleobject
li_rc = loo_Bundle.ConnectToNewObject("Chilkat.EmailBundle")

li_KeepOnServer = 1
li_HeadersOnly = 0
// Irrelevent because we are not downloading headers-only
li_NumBodyLines = 0
li_Success = loo_Mailman.FetchAll(li_KeepOnServer,li_HeadersOnly,li_NumBodyLines,loo_Bundle)
if li_Success = 0 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    destroy loo_Bundle
    return
end if

loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")

i = 0
do while i < loo_Bundle.MessageCount
    loo_Bundle.EmailAt(i,loo_Email)

    Write-Debug "From: " + loo_Email.From
    Write-Debug "Subject: " + loo_Email.Subject
    i = i + 1
loop

li_Success = loo_Mailman.Pop3EndSession()


destroy loo_Mailman
destroy loo_Bundle
destroy loo_Email