MTT has just added a new Shipper / Receiver self service portal. Key features are Shipper BOL upload, Carrier/Broker BOL upload, Receiver BOL download and POD upload.
Best of all, shippers & receivers do not require a login! They just need to know the BOL number, receiving location zip code and date of receipt.
Carriers and brokers can manage what documents are available for download.
Find out more at https://mytruckin.tech and feel free to jump on the calendar to discuss implementing this functionality in your company here https://calendly.com/mytruckintech/my-truckin-tech-meeting.