Can I get a year's postal postcard?

According to the query of Spotted Encyclopedia, postcards are only kept free for five days in the post office, and the storage fee is charged from the sixth day, and the storage fee is charged according to the volume, and will not be returned to the original mail room after 1 month. Postcards sent to the post office will be emptied within a certain period of time if they are not picked up for a long time, so it is better to pick them up on time. So postal postcards can't be taken for one year.