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Following the latest update, I find that Thunderbird has deleted all emails for the last calendar year, from both my inbox and sent box, for both my providers. Emails prior to that remain. Can these be recovered? Peter M

Following the latest update, I find that Thunderbird has deleted all emails for the last calendar year, from both my inbox and sent box, for both my providers. Emails prior to that remain. Can these be recovered? Peter M

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that's weird, were they archived?