Ask HN: Is there an email service that sends email by entering/clicking a URL

I'd like to be able to send an email by entering a URL like someservice.com/api/send-email?email=bob@home.org&name=Robert&template=job2231 - then an email is sent based on a pre-configured template that takes in the email, name parameters.

I would have logged into someservice.com via their web UI, so ideally authentication is handled in the background - wrt to sending the email. Of course if not logged in, the email isn't sent.

Do you have any recommendations for someservice.com or an equivalent product?