Require email verification
When on, new users must confirm their inbox before the account becomes active.
Where to find it
Admin → Settings → Settings (first tab) → Registration & login → Require email verification
Setting key: require_email_verification (plain setting — not toggle.*). Defaults on.
How it works
Sign-up creates a pending user and sends a verification email. Until mail works, users get stuck (and a failed send can leave a bad signup experience — fix Email delivery mode first).
Turning this off skips the verify gate for new signups. Already-active users stay active.
Common problems
Users stuck pending
Outbound mail broken, wrong Email from address, or mail in spam. Fix delivery, then resend / have them register again if the pending row was cleaned up.
Turned on after launch
Only new signups must verify. Tell existing members if your community expects open access.