The SA Post Office (Sapo) was offline for business transactions early Friday.
Sapo spokesman Johan Kruger said that points of sale and other systems were unavailable to customers.
“Offline transactions can be completed at post offices, including posting and picking up items,” he said.
“Sapo apologizes for the inconvenience and is working to restore its system as soon as possible.”
Support independent journalism by subscribing to The Sunday Times. Only 20 R for the first month.