I see what you mean. And if you knew what was coming, you could simply avoid the server on which you're in danger for 24 hours and claim your prize on sign-on. I suppose the purpose Aikar is trying to defeat is the ability to send vast amounts of mined material from the far wild into town instead of having a player run it back by hand. Either way, it's an awesome system and "Huzzah for Aikar!"
2 Questions for Aikar... 1. Will Mail ever expire or delete ? Lets say you mailed a friend that has been gone for a while, will they still get the items when they return? Or lets say you are deep in the wild on your home server and you only come to town every couple months or so, but you want to check all your item mail in town, will you lose the the mail at some point in time or on an update to 1.8 ? 2. Is there a max number of unread mail that you can receive (from other players or from voting) before you do not get the mail you should because you are out of mail space (not inventory space, i mean unread mail space)? Thank you for this info.
I don't think we tested it - doubt their is a set limit - just whatever the system would allow (might not technically be a limit)
After testing and talking with aikar, I have your answer. There are no limits to mail and they never expire. =)