(Tcl) 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.

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load ./chilkat.dll

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

set oauth2_access_token "some_previously_obtained_token"

set mailman [new_CkMailMan]

# Set the properties for the SMTP server, whatever they may be..
CkMailMan_put_SmtpHost $mailman "smtp.example.com"
CkMailMan_put_SmtpPort $mailman 587
CkMailMan_put_StartTLS $mailman 1

CkMailMan_put_SmtpUsername $mailman "myLogin"
CkMailMan_put_OAuth2AccessToken $mailman $oauth2_access_token

# Create a new email object
set email [new_CkEmail]

CkEmail_put_Subject $email "This is a test"
CkEmail_put_Body $email "This is a test"
CkEmail_put_From $email "Joe Example <joe@example.com>"
CkEmail_AddTo $email "Chilkat Admin" "admin@chilkatsoft.com"

# Connect to the server indicated by the SmtpHost property
set success [CkMailMan_SmtpConnect $mailman]
if {$success != 1} then {
    puts [CkMailMan_lastErrorText $mailman]
    delete_CkMailMan $mailman
    delete_CkEmail $email
    exit
}

# Authenticate using XOAUTH2 (using the OAuth2AccessToken)
set success [CkMailMan_SmtpAuthenticate $mailman]
if {$success != 1} then {
    puts [CkMailMan_lastErrorText $mailman]
    delete_CkMailMan $mailman
    delete_CkEmail $email
    exit
}

set success [CkMailMan_SendEmail $mailman $email]
if {$success != 1} then {
    puts [CkMailMan_lastErrorText $mailman]
    delete_CkMailMan $mailman
    delete_CkEmail $email
    exit
}

puts "Email sent."

CkMailMan_CloseSmtpConnection $mailman

delete_CkMailMan $mailman
delete_CkEmail $email