Google Mail — Offer custom email addresses to your organization with more than 7.3 gigabytes of storage for each account, advanced spam filters, search tools to help people find information fast, plus instant messaging and calendar tools built right into the email interface.
Advanced filters keep spam out of employees’ inboxes. That way they can focus on mail that matters and System Administrators can focus on other strategic initiatives and tasks. Instant Messaging Included
No need to launch a different application or leave your inbox. You can connect with contacts instantly. Voice and Video Chat Included
Gmail integrates voice and video conversations making it easy to connect with co-workers around the world. Find Messages instead of burying them Advanced Protection and Security Mobile Integration Message Recovery and Archiving