Newsletters spam test by mail-tester.com
mail-tester.com is a free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems
spam
AdguardTeam/AdGuardHome
Network-wide ads & trackers blocking DNS server. Contribute to AdguardTeam/AdGuardHome development by creating an account on GitHub.
oisd | domain blocklist
The oisd domain blocklist; designed to be the best domain blocklist. Manual whitelisting should be a thing of the past.
Pi-hole
Network-wide ad blocking via your own Linux hardware