I have had to apply the sprintf bug fix (see Oxwall Docs) on my site. Unfortunately, this appears to mean that it is now sending out emails from the shared hosting default email address (jam1@79.justhost.com) rather than the one that I need all emails to come from (hq@example.com).
How do I force oxwall to send emails from a specific "from" email address while the sprintf bug fix is in place?