One of the most popular email services, Gmail keeps track of all your emails with threaded conversations, tags, and Google-powered search to find any message you need.

Slack is a platform for team communication: everything in one place, instantly searchable, available wherever you go. Offering instant messaging, document sharing and knowledge search for modern teams.

Discord is an all-in-one voice and text chat for gamers.

Microsoft Outlook is a web-based suite of webmail, contacts, tasks, and calendaring services.

An easy tool for developers to send and receive SMS and voice calls.

Microsoft Office 365 Business is a complete office suite in the cloud. It provides all the standard office products like Excel, Outlook, Word, SharePoint and more, but available from any internet enabled computer! Zapier does not currently support Outlook.com addresses or Home 365 accounts, only business or Enterprise.

ClickSend is a cloud-based service that lets you send and receive SMS, Email, Voice, Fax and Letters worldwide.

Keep your team focused and working together with Chatwork's team chat, tasks, video chats, and more in one place.

CallRail is an analytics platform designed for those who rely on quality calls and inbound leads to measure success.

Pushover is a simple push notification service to instantly send alerts to Android and iOS devices.