17/06/2018 21:05Posted by GenéTo my knowledge thats how it is too, if you send a mail to a character and its not picked up for 30 days, you will have it sent back to the character it was sent from, and if that one isnt looted for another 30 days then it gets deleted with its content.
Correct, this is how it works!
There are a few exceptions (messages sent by the system or us Game Masters may last longer than that, mails from the Auction House are purged after thirty days as there is no sender to return them to) but your summary is accurate, on a general level :)
Due to the temporary nature of the inbox system I would caution against using it as storage and advise to use a proper tool instead (e.g. inventory space or the Reagent Bank).