I noticed that, as of late, I am often getting spam messages as support tickets. And this even though I have CAPTCHA enabled for non-registered users (it is always only non-registered users who submit the spam tickets). So I don't know how it is possible that the spam is still coming through.
Is there something that I can do to better stop the spam messages, aside from the CAPTCHA?
Such as, for example, have something of a filter that doesn't allow certain text in certain fields?
Maybe the spam comes from contact form? Helpdesk Pro has a plugin which convert email sent from contact form on the site to a ticket
Go to Extensions -> Plugins, please check and make sure System - Helpdesk Pro Ticket From Contact Form is disabled. If it is enabled, please disable it, then continue monitoring to see if spams still happen
I just checked on two Joomla websites where I use reCAPTCHA, and I use the same keys on both and they both work, so I think it should be fine.
Thanks for letting me know about the Global Configuration setting, I had forgotten about that. I have set the Invisible reCAPTCHA now and will see if it makes a difference. If not, then I will try the plugin you suggested.