I use gmail to sync between the 3 machines I use, because the mail is
kept on their server until you clear it down.
Once you've created a gmail account you can set it in Thunderbird as an
imap type account and create various sub folders to sort the mail, then
forward to the gmail account from your machines.
each time you log onto ThunderB the gmail will down load to your local
machine
The only problems I have with this are; that emails you send are kept
locally unless you specifically upload them to gmail and of course your
emails belong to Google (read the eula)
Gemma
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