I've been thinking a lot about this post: After a while an idea occurred to me, one I've seen suggested a couple other times here, and is usually met with answers like "You can send a /tell or @name ingame" or using the forum's PM/Conversation system to communicate with offline users.That's nice and all, but it's not what I have in mind here. I would like to see an in-game postal system for EMC.Updated & revised! Thanks jkrmnj for the suggestion /mail open : Opens an inventory similar to /vault. This would only be a single-chest in size, and would display any items that have been sent to you. (Should this be available in the wilderness?)/mail send <username> : Would transfer whatever item(s) are in your current active slot to the player in question. This could be a written book, an enchanted tool, or a stack of blocks. A system message, as with enchanted-item shops, will ask you to confirm if you wish to send the item. If sent successfully, you will receive a system message telling you the item was sent, and charged a small fee of rupees. You cannot mail things to yourself./mail auction <username> || /mail auction send : Only available in town. This function allows you to ship an entire DC's worth of material. The first command, /mail auction <username> opens a DC-sized page similar to /vault, for a fee. This can then be filled with the auction materials. When the chest has been loaded, use /mail auction send, and the contents will be shipped to their recipient. No fee for shipping, but opening the chest will incur a cost similar to the 10r vault fee. (Thanks to Dudelol523 for sparking this idea)./mail auction open : Opens a DC-sized page showing received items sent with the auction function above. No fee for receiving, but available only in town. /mail notify <on/off> : Players can choose whether or not they wish to be notified of received mail. Senders will still receive confirmation messages, and the notification that their mail was sent successfully (or, if it was not, "<username>'s mailbox is full. Your mail cannot be sent.") On by default./mail accept <on/off> : A flag available to every player, in case for some reason they do not wish to receive items through a mail system. In case some troll thinks it's funny to mail an entire inventory's worth of dirt to everyone online. On by default."mailbox" sign tag : I still like the idea of having a physical mailbox to be placed. Thus, in town only, a player could place a sign with the word "mailbox" in the first line. Upon clicking "done" the sign becomes clickable and allows the player to use "/mail open" instead of typing in the command.Postage Fees: Rupees would be charged for the following. Exact fees subject to discussion and balancing, these are simply proposed suggestionsThe sending of mail = 15r (per item, counting all items in a stack) / 150r in wild (to prevent abuse of the system). Mailing one item or letter wouldn't be so bad. Mailing stack after stack of mined ores & goods would be prohibitively expensive.Sending auction chests = 20r to open "send" page. (in town only)Using /mail open in the wild = 100r (if applicable)Placing "mailbox" signs = Free (in town only)The original suggestion posted involved the use of signed books and special chests, but having time to consider it, this would be much simpler.