Several factors can affect the speed at which mail is delivered. Some of the most common reasons why mail delivery may take longer than expected include the following:
Distance: Mail must travel through the postal system to reach its destination; the farther the distance, the longer it may take.
The volume of mail: The volume of mail being processed by the postal system at any given time can affect delivery speed. During peak periods, such as the holiday season, a larger volume of mail may be being processed, which can slow delivery.
Weather: Inclement weather, such as snowstorms or hurricanes, can disrupt the postal system and cause delays in delivery.
Postal strikes: If there is a postal strike or other labor dispute, it can disrupt the normal operations of the postal system and cause delays in mail delivery.
Address issues: If the address on a piece of mail is incorrect or incomplete, it may take longer to reach its destination or, worst case, not at all.
Customs: customs can delay the delivery of mail due to required documentation, prohibited items, inspection, import duties, and security concerns.