Freshsales CRM - A full-fledged CRM for high-velocity sales teams.
Bananatag - Find out what happens to your emails after you press send! Add email tracking, attachment tracking, email scheduling and templates to your daily emails.
Pipedrive - Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
GetNotify - GetNotify is a free email tracking software solution.
InStream CRM - Business relationship management platform - CRM alternative
Mailtrack.io - The best email tracking solution I've found. Free