The best thing about infolinx is that it can be used to track all your shipments from various sources like emails/faxes etc. You donβt need too many people in order for this software because you are able send requests using email addresses (which makes sense since most of us already have an account set up). It also has some other features which make tracking easy but I cannot remember them now as my work requires me not use such things very often so maybe someone else will find something useful