The history of the Senegalese post office coincides with that of the colonial conquest, for having served as an indispensable tool during this period.
There was no postal service organized before the arrival of the colonizers.
The exchange of news was done by pedestrians or horsemen and most often they were at the service of Kings and Heads of Provinces.
Means of transport by land, sea and river were available to the postal service. And in areas without rivers, seas or railways, a pedestrian postal courier was recruited at the village level.
Delivery time to the neighboring country was fast. I use it many times. pretty cost-effective