[ubuntu] Making backup of IMAP email accounts

view story

http://ubuntuforums.org – Hi you all, I am using several email accounts on the internet, mainly from Fastmail and gmail. I would like to avoid loosing mails from these accounts. So I setup Thunderbird on my Linux PC to download all mails. But I realized that this is not really a backup, Thunderbird is synchronizing with the imap server (even not sure if it downloaded all attachments). So if I (or the webservice) accidentally deletes my mails, Thunderbird will synchronize and also delete everything. So this is my problem: I would like to backup everything from the imap server. How do I do that ? Can I se (Hardware)