One of the major issues that World of Warcraft had in its earlier version was that the team apparently hadn't quite anticipated the need for a robust trading, auction, and commerce system to handle the market for items and materials. The Postal System is the first aspect of what will hopefully be a completely revamped trade and market system. The Postal System gives players the ability to send and receive in-game mail. The mail system will be accessed via mailboxes placed in every inn in every town in Azeroth. The three types of mail include "Normal mail," which is text-only e-mails written on stationery that can include money transfers; "Packages," which are items sent via the mail system (although they can also include text and money); and "C.O.D. Packages" that are similar to packages, although they must be paid for before they can be opened.