Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
1.1.1.1 - The free app that makes your Internet safer.
SPAMfighter - SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird
Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.