Use 2 email configuration

The main email config file - APPATH/config/email.php - can only contain one set of options. but you can create other config files and load them explicitly passing those values to email->initialize().

But you will have to retrieve APPATH/config/email.php values and send them to  $this->email->initialize($config); to return to the default setup. No way around that I can see.

I think I'm wrong, I created a file for configuring the second account, load it with $this->config->load(), then call $this->email->initialize($config), but I do not get what I expect, I'm definitely mistaken, can you help me?

Thanks