1. Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

  2. Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

  3. Organize your schedule and share events with friends without hassle. With Google's free online calendar, it's easy to keep track of life's important events all in one place.

  4. RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

    freemium $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)

  5. Gmail is a free search-based web-mail service.

  6. Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs

  7. There’s big news attached.

  8. Mailbird is the best email client for Windows 7, 8 and 10

  9. The Power Email App for busy professionals, like you.

  10. eM Client is a Windows-based email client for sending and receiving emails, and managing calendars, contacts and tasks.

  11. Business VoIP, cloud phone systems trusted by more than 150,000 companies. Powered by the leading cloud PBX VoIP platform, Nextiva is rated the best business VoIP service provider.

  12. Apps/Evolution - GNOME Wiki!