Unable to update Sender property

[soggycity]

The Sender property cannot be changed after it is set with the initial setFrom method. The code only updates Sender if it is empty.

The use case is opening a connection with a SMTP server and sending multiple emails using different sending accounts (user and password combinations) on the same server without having to close the connection.

Currently, the Reply-to gets the value from the first account and then cannot be updated for subsequent emails sent using different accounts. As a result, the only way to send emails from different accounts on the same server is to destroy the PHPMailer object and create a new one which means the connection to the SMTP server has to be closed and then opened again.

[Synchro]

What's stopping you from setting the public Sender property? It's only set from setFrom() if you have not set it yourself. IME, most mail servers will not let you do this anyway, because the envelope from is usually tied to the authenticated user.