Sender vs from?

Question

symfony

https://github.com/symfony/mime/blob/5.x/Email.php#L93
https://github.com/symfony/mime/blob/5.x/Email.php#L118

What's the difference and how Will it be visible to the recipient?

Answer 1

If very rude From - the one from whom the message, Sender - the one who sent. Most of the time it's the same thing.
As you will see, it completely depends on the software in which the recipient looks at his mail.