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Help to import to Thunderbird 142 from Outlook 2016

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Old Newby!
Old Newby!

I want to switch to Thunderbird from Outlook (desktop). I'm following the procedure below but without sucess.

I'm on Windows 10. Outlook is set as the default e-mail app. Thunderbird is installed. Both Outlook and Thunderbird are set up with identical multiple profiles. I open one of the profiles in Thunderbird and go to Tools > Import and select "Import from Outlook". When I select the Outlook import line, an error message appears stating "! No profile found". (See image)

More info: Outlook (part of Office 2016) is a 32-bit install. Thunderbird is a 64 bit install. Outlook is set up as SMTP/POP3, whereas Thunderbird is (currently) set up as SMTP/IMAP.

I'd like to know what I'm not doing so I can move my Outlook to Thunderbird before transitioning to Win 11.

All suggestions that will help me move over to Thunderbird will be appreciated.

Thank you.

I want to switch to Thunderbird from Outlook (desktop). I'm following the procedure below but without sucess. I'm on Windows 10. Outlook is set as the default e-mail app. Thunderbird is installed. Both Outlook and Thunderbird are set up with identical multiple profiles. I open one of the profiles in Thunderbird and go to Tools > Import and select "Import from Outlook". When I select the Outlook import line, an error message appears stating "! No profile found". (See image) More info: Outlook (part of Office 2016) is a 32-bit install. Thunderbird is a 64 bit install. Outlook is set up as SMTP/POP3, whereas Thunderbird is (currently) set up as SMTP/IMAP. I'd like to know what I'm not doing so I can move my Outlook to Thunderbird before transitioning to Win 11. All suggestions that will help me move over to Thunderbird will be appreciated. Thank you.
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Old Newby!
Old Newby! 질문자

OK; partly resolved!

Almost as soon as I posted the above a whole bunch of similar questions appeared in the right hand margin. I followed some of the responses and was able to determine that the two apps, Outlook and Thunderbird, needed to have the same bit width. I fully uninstalled Thunderbird and reinstalled the 32-bit version. Now the import feature works.

Now I need to re-install a second time and reset the server settings on Thunderbird to SMTP/POP3. I had completed the import process with Outlook set up as SMTP/POP3, and Thunderbird set up as SMTP/IMAP so I inadvertently uploaded all my emails back to my ISP's mail servers.

More to come...