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CAPTCHA and anti-spam protection

The Anti-Spam settings keep bots and abusers away from sign-up, sign-in and the public ticket form. Use them together.

  1. Go to System → Settings and open Anti-Spam.
  2. Turn on the protections you want (below).
  3. Select Update.

The Anti-Spam Settings page with IP Blocking, CAPTCHA Protection and the first of the other protections.

Settings, Anti-Spam Settings. Select the image to enlarge it.
Protection What it does Where it applies
IP Blocking Refuses each address in the Blocked IP List (one per line) Client and staff sign-in, sign-up, profile changes, public tickets
CAPTCHA Protection Asks for a CAPTCHA Client sign-up, client sign-in, password reset requests, public tickets
Stop Forum Spam Checks the visitor against the Stop Forum Spam database Sign-up, public tickets
Disposable Email Protection Refuses temporary email addresses Sign-up, public tickets
Honeypot Protection Adds a hidden field that only bots fill in Sign-up

Pick a CAPTCHA Provider: Google reCAPTCHA v2, Google reCAPTCHA v3, Cloudflare Turnstile or hCaptcha. Paste the site key and secret key you get from that provider. For reCAPTCHA v3, the reCAPTCHA v3 Minimum Score (0.0 to 1.0) sets how strict it is.

For sign-in PINs and country limits, see Sign-in security.