If a customer does not pick up their mail for 10 consecutive days and has not arranged to hold their mail, what happens?

When a customer does not pick up their mail for 10 consecutive days and has not arranged for their mail to be held, it indicates that the customer is no longer active in retrieving their mail. In such cases, the postal service typically takes action to manage undelivered mail efficiently. The appropriate response to prolonged inactivity in mail collection is for the postmaster to cancel the mail service. This ensures that the mail does not accumulate unnecessarily and can be returned to the sender or handled according to postal regulations.

The other options do not align with standard procedures. For instance, suspending the service temporarily does not address the issue of accumulated mail, and fining a customer is not a practice of the postal service in this scenario. Similarly, merely returning the mail to the sender does not reflect the systematic approach taken to manage uncollected mail over time. Thus, the action taken by the postmaster to cancel the mail service after a given period of inactivity is the most accurate and appropriate response in this situation.