It looks to me like logging is already on.
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
log_errors = On
Own/Nextcloud broke a while ago and in order to get upgrades to work, I modify the setup program to skip installation (I don't use Own/Nextcloud anyway).
Other than that, everything is out-of-the-box.
And apparently, something about 0.24's security has changed and email is automatically flagged as spam or rejected outright. From an email sent to a Gmail account:
Why is this message in Spam? It's from an address in the example.com domain but has failed example.com's required tests for authentication.
The status page also shows that everything appears to be fine although it does warn that the domain's DNSSEC DS record has not been set (it is not a TLD where DNSSEC is available).
Is there any way to revert to 0.23?