My use case is pretty simple but I am not sure how to do it as I am a very new beginner with Marketo.
I am developing a web portal and I just need to send transactional emails from my web portal to a single customer email. Email such as "Welcome blablabla", "Please confirm your email blablabla". I don't need to create any lead and marketing campaign for now, I just need to use Marketo as a SMTP platform.
What is the easiest way to do itby using the API only?
Thank you for any support,