From: Les Mikesell lesmikesell@gmail.com
I have a bunch of old mail spread variously across dovecot maildirs and mbox format files on several machines that are headed for the trash. Is there anything considered to be a portable archive format for mail messages, and if so are there tools to copy into it - or do I have to pick a client and copy to its local storage?
Maybe as .eml files? http://en.wikipedia.org/wiki/E-mail#Filename_extensions
JD