Feature proposal #8140
Update PHPMailer to 6.x
We should ideally consider removing this entirely and simply using the CMS (e.g. Application::CMS->sendMail) for sending mail through a CMS library function. In the future when no CMS mail function is available we'd simply include PHPMailer ourselves.
Alternatively consider updating our current PHPMailer 5.2.28 to latest 6.x release. Should also consider moving this library to a "vendor" folder as is standard for external library usage in a framework. Basically it should be placed, unmodified, in the below folder.