I’ve set registration to Require application again, don’t like this bots creating accounts.
Also I’m running into email limitations. Using the Sendgrid Free plan of 100 emails per day, but if a couple of member have email notification on, I’m reaching that 100 very quickly. How do others handle the high email traffic ?
I read somewhere that you can add a captcha to registration, maybe that’ll help filter some of the bots out?
Catchall was removed. Mod verification is the only way to slow them down. Won’t keep them from littering your inbox.
As for the mail issue, try using a Gmail with a per app password.