Where is the mail?

Your emails consist of data packets transferred from a sending email client (sender) to the server, and retrieved from the server by the receiving email client (recipient). A copy of the email may exist with either client and upon the server, as well as within any current backups or redundant storage at each of those locations, and may even exist as a hard-copy (printed version) should the sender/recipient have required it. It may also exist as multiple digital or hard copies in the files maintained by intelligence/law-enforcement/government-surveillance agents in the process of gathering evidence in an investigation of your activities (or as is actually the case, gathered arbitrarily for the purpose of determining whether you should be investigated in the first place).

Your 'snail mail' exists as physical packets transferred from a sender to the mail service (consisting of collection/delivery infrastructure and sorting offices) and then from the mail service to the recipient. You may locate received mail on your doormat or in your mail box (or on your desk, in your desk's in-box, or upon the breakfast table if you have a dog/partner/assistant/house-mate/runner transfer it there for you).

If you live in a region with access to publications entitled "The Mail", this normally exists as regularly printed editions. At any time an edition may be found as a pre-printed digital draft/final/proof, freshly printed in a stack of identical editions, being transported/delivered to retailers, and eventually received or purchased by end users. You may ultimately locate this in your favourite reading spot.

Chain mail would normally be worn beneath the armour, over a layer of wadding. While not worn, it may be found in the user's armoury or the central armoury of the unit to which the user belongs. It might also be found wrapped around a bloody lump of meat that used to be its user, or in the hands of the armourer during repairs.