Would be nice without setup_config

[ttodua]

We use in very dynamical way, so setup-config or saving any variables on server is quite unusual and unacceptable for us.
Is there any example of implementation simply without using any setup-configs?

so, like:
$my = new SMTPMailer("xyz@gmail.com", "pass123", "smtp.gmail.com", 587);

[s22-tech]

Check out this fork for this feature.

[ttodua]

Check out this fork for this feature.

Would be good if you will PR your fork.