Do Mail ever Expire?

I have a F2P Account and would like to mail my Premium Items to myself to store them for if one day i get Premium Civ but want to know if there is an expiration date?|||

EDIT: checking on this right now...

|||Lol, like one hour after I receive a message it says "About to Expire." :P|||dont you mean 3 days?
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30 or 3 which is it?

Also then rather than having to resent yourself the item before the expiration date there should be an archive button to lock mail so it can't be deleted.

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wilmer0072000 wrote the following post at 08-26-2011 5:15 PM:
I have a F2P Account and would like to mail my Premium Items to
myself to store them for if one day i get Premium Civ but want to know
if there is an expiration date?

You can't mail rare/epic items to yourself. A way to store rare/epics in your mail is to trade your rare/epics to someone who is premium, so he can send (not COD) them to your mail.
|||That is gonna be hard considering i don't have any friends who are premium so findig a random premium player isn't an option as they can just keep the item and scam me.