OneNote in Office365 error: Send email page sends email with .mht attachment and not embedded in the body of email

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MelkerKarlsson-6033 asked Apr 28, '22 emilyhua-msft commented May 2, '22

OneNote in Office365 error: Send email page sends email with .mht attachment and not embedded in the body of email

Hi,
I'm currently on Office365 version: 16.0.14326.20852

Issue: The OneNote "Send email page"-function creates an email with a .mht attachment instead of the notes embedded in the body of the email. On my colleagues computer it works fine, it works as intended. I have googled and tried several different solutions such as repairing online, changing the mail settings to not allow attachments etc. Nothing is working. Luckily we discovered what we think is causing the problem.

Troubleshooting: OneNote creates the e-mail with the format plain text on my computer. On my colleagues computer it's created with the format HTML. What I think might be the solution is to force OneNote to create the mail with the format HTML. How can I do this?

Kind regards,
Melker

office-onenote-client-itpro

5 |1600 characters needed characters left characters exceeded

Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Answer 1 · 2022-04-29T03:07:34.167Z

emilyhua-msft answered Apr 29, '22 emilyhua-msft commented May 2, '22

Hi @MelkerKarlsson-6033,

I suggest you go to Windows Settings > Apps > Default Apps, make sure Outlook desktop client is the default app by file type and by link type.

Then go to Registry Editor, navigate to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications, ensuer there is a string Outlook.Application.16 with value of "Software\Microsoft\Office\16.0\Outlook\Capabilities".

Besides, go to Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail, ensure there is a string (Default) with value of "Microsoft Outlook".

If you can find Clients\Mail entry under HKEY_CURRENT_USER\SOFTWARE, please also make sure its string (Default) with value of "Microsoft Outlook".

Serious problems might occur if you modify the registry incorrectly. Before you modify it, please remember to back up the registry for restoration in case problems occur.

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5 |1600 characters needed characters left characters exceeded

Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

emilyhua-msft · May 02 at 08:06 AM

Hi @MelkerKarlsson-6033,
I am checking thead, is there any update?
If yes, please feel free to post back.

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