Outlook for MAC is not syncing sent folder for IMAP account

Thank you for following up on the issue and posting the solution. The solution worked for me.

This thread can be closed.

I was in touch with Microsoft this morning and was given this solution:

Delete the IMAP by going into Outlook>Preferences>Accounts, highlight the account, and remove using the - box in the lower left corner.

Reinstall your IMAP account WITHOUT using Microsoft Cloud by following these directions:

If you don't wish to take advantage of Microsoft Cloud, you can add an account without it using the following instructions.

1. Click Tools > Accounts... > New Account... (+ dropdown).
2. Type or paste in the email account you want to use and click Continue.
3. Click the Not IMAP? link at the top right of the window.   **Note:**POP accounts won’t be able to be selected because they do not sync with Microsoft Cloud.
4. Turn off Sync with Microsoft Cloud by clicking on the toggle, select your desired email provider, and click Continue.   **Note:**Office 365 and Outlook.com accounts won't be able to be selected because they require Microsoft Cloud.
5. If your browser window opens, follow the instructions to allow access of your email account to Microsoft Outlook until your account has been successfully added. This usually includes entering your email address and password as well as allowing Microsoft access to your account to allow for syncing.
6. Click Allow if you're asked to allow the page to open Microsoft Outlook.
7. Your account is now added. You can click Add Another Account or Done if you're finished.

I was in touch with Microsoft this morning and was given this solution:

Delete the IMAP by going into Outlook>Preferences>Accounts, highlight the account, and remove using the - box in the lower left corner.

Reinstall your IMAP account WITHOUT using Microsoft Cloud by following these directions:

If you don't wish to take advantage of Microsoft Cloud, you can add an account without it using the following instructions.

1. Click Tools > Accounts... > New Account... (+ dropdown).
2. Type or paste in the email account you want to use and click Continue.
3. Click the Not IMAP? link at the top right of the window.   **Note:**POP accounts won’t be able to be selected because they do not sync with Microsoft Cloud.
4. Turn off Sync with Microsoft Cloud by clicking on the toggle, select your desired email provider, and click Continue.   **Note:**Office 365 and Outlook.com accounts won't be able to be selected because they require Microsoft Cloud.
5. If your browser window opens, follow the instructions to allow access of your email account to Microsoft Outlook until your account has been successfully added. This usually includes entering your email address and password as well as allowing Microsoft access to your account to allow for syncing.
6. Click Allow if you're asked to allow the page to open Microsoft Outlook.
7. Your account is now added. You can click Add Another Account or Done if you're finished.

I was in touch with Microsoft this morning and was given this solution:

Delete the IMAP by going into Outlook>Preferences>Accounts, highlight the account, and remove using the - box in the lower left corner.

Reinstall your IMAP account WITHOUT using Microsoft Cloud by following these directions:

If you don't wish to take advantage of Microsoft Cloud, you can add an account without it using the following instructions.

1. Click Tools > Accounts... > New Account... (+ dropdown).
2. Type or paste in the email account you want to use and click Continue.
3. Click the Not IMAP? link at the top right of the window.   **Note:**POP accounts won’t be able to be selected because they do not sync with Microsoft Cloud.
4. Turn off Sync with Microsoft Cloud by clicking on the toggle, select your desired email provider, and click Continue.   **Note:**Office 365 and Outlook.com accounts won't be able to be selected because they require Microsoft Cloud.
5. If your browser window opens, follow the instructions to allow access of your email account to Microsoft Outlook until your account has been successfully added. This usually includes entering your email address and password as well as allowing Microsoft access to your account to allow for syncing.
6. Click Allow if you're asked to allow the page to open Microsoft Outlook.
7. Your account is now added. You can click Add Another Account or Done if you're finished.

Unfortunately the newest general release version has not fixed this issue (although I haven't gone down the beta release path yet).

I just bought a new MacBook Pro with M1 Pro chip, Monterey, and I'm having the same exact problem.

It's a shame, since I absolutely love both the new laptop and Outlook with iOS and Windows 11 until this "MAC is not syncing sent folder for IMAP account" issue.

I hope Microsoft and Apple resolve this soon.