Topic: Mail with attached items including COD
Currently there is mail. Currently there is direct-trade.
If a mail message had an attached direct-trade offer (a button at the bottom that when the receiver clicks it opens a direct-trade window with the sender, exactly as if the sender were online and sending a direct-trade offer), then two people could conduct a direct-trade transaction without simultaneously being online.
Note that I'm not suggesting mail that freights items from one terminal to another; obviously that would destroy the locality of markets.
Possibly this change needs a fee associated with it (same as if the transaction were conducted on the market? 1000 nic, same as a private assignment? 5000 nic?) - in order to provide a tuning knobto control how much this additional trading opportunity changes the economy; but perhaps not.