Solved: SPAM attack containment - Check Point CheckMates
Intego Personal Antispam Settings and Preferences
OVHcloud AntiSpam - Bonnes pratiques et déblocage d'une adresse IP - OVHcloud
How to Check Existing Users and Comments for Spam
GitHub - ryankopf/antispam: The antispam gem helps prevent spam in your Rails applications by providing tools that check spam against powerful spam-prevention databases, accessible for free.