Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
instashare - Share your photos to instagram from your mac
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Plover - Browser Airdrop - transfer files to anyone, any device
Front - multi-channel inbox service for collaborative teams
Starfiles - File hosting done simple