While I am generally satisfied with OSX' Mail, I am looking into a 3rd-party mail client solution that will enable me to view messages without downloading them. Emails claim a rather large chunk of storage, and available space on my MacBookAir's SSD is at a premium. I did a search on mail clients, and read up on a number of available apps, but in the reviews there is no mention of this functionality. It is strange, as iOS' Mail seems to do exactly what I want, i.e. leave messages on the server and only temporarily retrieve them when you want to read them. This was obviously designed with the storage constraints of mobile devices in mind. I tried to make OSX Mail behave the same way, but I guess it is not possible. Does anybody here know of an OSX mail application that does this? Thanks.