PowerBuilder

SMTP using HTTP Proxy

Demonstrates how to communicate with an SMTP server via an HTTP proxy. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Mailman
oleobject loo_Email

li_Success = 0

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

// The mailman object is used for sending and receiving 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 SMTP server.
loo_Mailman.SmtpHost = "smtp.chilkatsoft.com"

// Set the SMTP login/password (if required)
loo_Mailman.SmtpUsername = "myUsername"
loo_Mailman.SmtpPassword = "myPassword"

// Create a new email object
loo_Email = create oleobject
li_rc = loo_Email.ConnectToNewObject("Chilkat.Email")

loo_Email.Subject = "This is a test"
loo_Email.Body = "This is a test"
loo_Email.From = "Chilkat Support <support@chilkatsoft.com>"
li_Success = loo_Email.AddTo("Chilkat Admin","admin@chilkatsoft.com")

// Call SendEmail to connect to the SMTP server via the HTTP proxy and send.
// The connection (i.e. session) to the SMTP server remains
// open so that subsequent SendEmail calls may use the
// same connection.  
li_Success = loo_Mailman.SendEmail(loo_Email)
if li_Success <> 1 then
    Write-Debug loo_Mailman.LastErrorText
    destroy loo_Mailman
    destroy loo_Email
    return
end if

// Some SMTP servers do not actually send the email until 
// the connection is closed.  In these cases, it is necessary to
// call CloseSmtpConnection for the mail to be  sent.  
// Most SMTP servers send the email immediately, and it is 
// not required to close the connection.  We'll close it here
// for the example:
li_Success = loo_Mailman.CloseSmtpConnection()
if li_Success <> 1 then
    Write-Debug "Connection to SMTP server not closed cleanly."
end if

Write-Debug "Mail Sent!"


destroy loo_Mailman
destroy loo_Email