To obtain a multi-site license you must negotiate a special offer with mnakalay, the developer of Anti-Spammer Master.
Click below to send a private message and begin the process. You may need to sign in to community.concretecms.com before you can message this user.Send Message
This add-on had pretty much eliminated my spam and is very good at eliminating spam and not blocking good messages.
Anti-Spammer Master for concrete CMS is a robust all-in-one spam prevention tool to stop spam dead in its tracks.
PHP 8 ready!
No third-party tracking, no privacy-rights breach, no private data saved, no monthly fee, just full-on anti-spam protection.
Anti-Spammer Master will work with:
You will get 2 reports letting you know how many spamming attempts were blocked in total and by type.
Here's a screenshot showing you the kind of results I got on my own website kalmoya.com:
3505 SPAM attempts were blocked from December 2, 2020, to August 18, 2021. That's more than 400 per month.
No anti-spam system is 100% foolproof. Anti-Spammer Master will do an excellent job blocking most automated spam and even some manual spam but your mileage will definitely vary.