Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Digital Waybill - Digital Waybill is an online delivery ordering courier software solution that provides features & functions to help manage online ordering, GPS tracking and more.
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
OnTime 360 - Cloud-based courier software with online order entry, route optimization, and dynamic tracking. The complete delivery software solution.