SpiffyPotato

I’ve never used Symfony Mailer however:

1. PGP is a program that encrypts things. Under the hood it can use asymmetric keys just like the example code shows.
2. Typically you’d use the public key of the person you are sending the email to so that they can use their private key to decrypt it. I’d guess you’d need to look at the docs for the SMTP tool you’re using and see if it can be given the private key

This something that really annoys me about more and more hardware sold these days. The incessant need to have a connected app and sign in. What I don’t understand is why businesses do it, it increases both the costs before and after a sale to make and maintain?

What I want is “noddy” hardware that does just what it is made to do.