Spamihilator - The free Anti-Spam-Filter Spamihilator removes more than 98% of spam mails before they even get into your inbox.
HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
SpamAssassin - Use this program to "Unspam" your mailbox(es).
ActiveCampaign - Integrated email marketing, marketing automation, and small business CRM. Send beautiful newsletters, setup behavioral based automations, and benefit from sales automation.
Spam Reader - Spam Reader is a free anti-spam add-on for Microsoft Outlook.
Pardot - Salesforce B2B marketing automation