writes "I have decades of email stored in various formats: various unix, VAX mail, Lotus Notes/Domino, PROFS, one-off formats, and several PC mail programs, etc. Some I want to keep, some I need to keep. Nothing new, right? Keeping the original applications around isn't a practicable option at this time, and neither is clearing a forest to print it all out. I want to be able to search them, preserve most of the ( html/rich-text) formatting, and obviously attachments. I can cook up converters, but I don't really want to write and maintain an archive system. I am thinking along the lines of an OSS mail or doc management system that I can run in a VM for 5-8 years before I have to move it again. Experiences and suggestions from folks who have gone through this?"