Hunter is the leading solution to find and verify professional email addresses. Start using Hunter and connect with the people that matter for your business.

Nylas Mail is an open-source desktop email client by Nylas, known for its emphasis on user-contributed extensions.

Polymail is the email platform for teams. By combining email with real time collaboration and integrating it with your team's other tools, Polymail allows everyone to work together seamlessly, move faster, and be more productive.

Airmail - Lightning Fast Mail Client for Mac and iOS

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues.

Intelligent inbox and calendar for iOS, Android, Mac & Slack