An analysis of how invite systems can be abused by spammers as open relays, with suggestions for implementing limits and monitoring.
How to use a custom domain and catch-all email aliases to reduce spam and increase privacy by creating unique addresses for each service.
Discusses effective anti-spam techniques like shadowbanning, adding friction, and filtering bot traffic, based on a Hacker News thread.
Analysis of spam registrations on Sourcehut, showing Gmail as the largest source and discussing email provider responsibility.
A follow-up article discussing three alternative solutions to CAPTCHA systems for spam prevention, focusing on user experience and accessibility.
A critique of CAPTCHAs, arguing they are insecure, inaccessible, and shift the burden of spam prevention onto users instead of site owners.
Explores using Unicode characters like ＠ and ․ to hide email addresses from spambots, offering a less common alternative to traditional methods.
A developer creates an Apache module, mod_defensible, to block comment spam using DNSBL servers, reducing server load.
