Assuming I have all the necessary hardware... I want to develop a system where you type in an email address and the Arduino will send hourly updates on attached sensors to the provided email address.
I can only get this to work if I enter my email account's username and password and send the email from the authenticated account. There's tons of examples online of this. However, I want to share it with others and I do not want my email authentication to be accessible or be attached with sending the emails. For example, I want the email to be from a generic service like email@example.com that no one can sign into and not my personal email or a Gmail account I made for the project.
Anonymous email senders have the right method, but they require human interaction to bypass Captcha or similar.
Does anyone have an idea of how to do this? Or should I make a separate webserver that handles the requests made by the Arduino and send emails through a Gmail account I made for the project?