Xbase++

Office365 Send Email using SMTP with OAuth2 Authentication

See more Office365 Examples

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

LOCAL nSuccess
LOCAL oJsonToken
LOCAL oMailman
LOCAL oEmail

nSuccess := 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.
oJsonToken := CreateObject("Chilkat.JsonObject")
nSuccess := oJsonToken:LoadFile("qa_data/tokens/office365.json")

oMailman := CreateObject("Chilkat.MailMan")

oMailman:SmtpHost := "smtp.office365.com"
oMailman:SmtpPort := 587
oMailman:StartTLS := 1

//  Use your Office365 email address for the SmtpUsername.
oMailman:SmtpUsername := "OFFICE365_EMAIL_ADDRESS"
oMailman:OAuth2AccessToken := oJsonToken:StringOf("access_token")

//  Create a new email object
oEmail := CreateObject("Chilkat.Email")

oEmail:Subject := "This is a test"
oEmail:Body := "This is a test"
oEmail:From := "MY_NAME <OFFICE365_EMAIL_ADDRESS>"
nSuccess := oEmail: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.  
nSuccess := oMailman:SendEmail(oEmail)
IF (nSuccess != 1)
    ? oMailman:LastErrorText
    oJsonToken:destroy()
    oMailman:destroy()
    oEmail:destroy()
    RETURN
ENDIF

//  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/

nSuccess := oMailman:CloseSmtpConnection()
IF (nSuccess != 1)
    ? "Connection to SMTP server not closed cleanly."
ENDIF

? "Mail Sent!"

oJsonToken:destroy()
oMailman:destroy()
oEmail:destroy()