Hi. At the beginning of the year my email host upgraded their servers to a super mega one. The incoming POP address was change to the new one. Thunderbird created a new inbox which only received new emails. My old ones had disappeared. On my Mac the folder 'Metadata' showed Thunderbird with old inbox (red dot) and the new inbox (Yellow dot), whilst the green dot folder has some remaining files (2016/7), see screen grab. I copied all the old emails across to the new yellow dot inbox folder (years of emails) but they do not show in my email browser window. I have R clicked the browser inbox and re-paired the folder to no avail. I have searched for the 'Inbox.msf' and found five with old dates, see screen grab.

Help!