MailScore is described as 'Helps marketing managers, SaaS founders, and agency owners make sure their emails actually reach inboxes. Google and Yahoo now require SPF, DKIM, and DMARC authentication for bulk senders. MailScore checks all of these plus MX records and IP blacklists in under 10' and is an website in the business & commerce category. There are eight alternatives to MailScore, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Chrome OS apps. The best MailScore alternative is MxToolBox, which is free. Other great sites and apps similar to MailScore are SPFToolbox, Port25 Email Verification, MailRadar and Generator Labs.