[Evolution] Archive function?

[Greg Macek <it-guy mrichi com>]

Are there any plans to implement an "Archive" function in Evolution?
This could really come in handy for people who have years of email (like
myself) stored, but rarely access. It would be convenient to have an
interface to this, perhaps zipping up the folders you want archived and
storing those files wherever you wanted. Then, if/when the time comes
you need something, you can un-archive the file back into Evo. 

Has it been requested before? Does it seem viable or a worthwhile
addition to anybody? Just an idea... 

- Greg