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(Excel) SMTP XOAUTH2 Authentication

Demonstrates how to authenticate using an OAuth2 access token. This example assumes you have already obtained the access token and now wish to use it in an SMTP session.

Download Excel Class Modules

Chilkat Excel Class Modules

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


oauth2_access_token = "some_previously_obtained_token"

Dim mailman As Chilkat.MailMan
Set mailman = Chilkat.NewMailMan

' Set the properties for the SMTP server, whatever they may be..
mailman.SmtpHost = "smtp.example.com"
mailman.SmtpPort = 587
mailman.StartTLS = True

mailman.SmtpUsername = "myLogin"
mailman.OAuth2AccessToken = oauth2_access_token

' Create a new email object
Dim email As Chilkat.Email
Set email = Chilkat.NewEmail

email.Subject = "This is a test"
email.Body = "This is a test"
email.From = "Joe Example <joe@example.com>"
success = email.AddTo("Chilkat Admin","admin@chilkatsoft.com")

' Connect to the server indicated by the SmtpHost property
success = mailman.SmtpConnect()
If (success <> True) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

' Authenticate using XOAUTH2 (using the OAuth2AccessToken)
success = mailman.SmtpAuthenticate()
If (success <> True) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

success = mailman.SendEmail(email)
If (success <> True) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

Debug.Print "Email sent."

success = mailman.CloseSmtpConnection()

 

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