PowerBuilder

Office365 Send Email using SMTP with OAuth2 Authentication

See more Office365 Examples

Demonstrates how to send email from smtp.office365.com using OAuth2 authentication. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_JsonToken
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.

// An Office365 OAuth2 access token must first be obtained prior
// to running this code.

// Getting the OAuth2 access token for the 1st time requires the O365 account owner's 
// interactive authorization via a web browser.  Afterwards, the access token
// can be repeatedly refreshed automatically (with no user interaction).

// See the following examples for getting and refreshing an OAuth2 access token

// Get Office365 SMTP/IMAP/POP3 OAuth2 Access Token
// Refresh Office365 SMTP/IMAP/POP3 OAuth2 Access Token

// First get our previously obtained OAuth2 access token.
loo_JsonToken = create oleobject
li_rc = loo_JsonToken.ConnectToNewObject("Chilkat.JsonObject")
if li_rc < 0 then
    destroy loo_JsonToken
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_JsonToken.LoadFile("qa_data/tokens/office365.json")

loo_Mailman = create oleobject
li_rc = loo_Mailman.ConnectToNewObject("Chilkat.MailMan")

loo_Mailman.SmtpHost = "smtp.office365.com"
loo_Mailman.SmtpPort = 587
loo_Mailman.StartTLS = 1

// Use your Office365 email address for the SmtpUsername.
loo_Mailman.SmtpUsername = "OFFICE365_EMAIL_ADDRESS"
loo_Mailman.OAuth2AccessToken = loo_JsonToken.StringOf("access_token")

// 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 = "MY_NAME <OFFICE365_EMAIL_ADDRESS>"
li_Success = loo_Email.AddTo("John Doe","somebody@example.com")

// Call SendEmail to connect to the SMTP server 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_JsonToken
    destroy loo_Mailman
    destroy loo_Email
    return
end if

// If SendEmail failed because of "Failed to get initial SMTP Response", then it may be 
// a firewall or anti-virus blocking communications.
// See https://cknotes.com/smtp-office365-com-failed-to-get-initial-smtp-response/

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_JsonToken
destroy loo_Mailman
destroy loo_Email