teams invite format is distorted when sent.

Hi @Kelley Travis,

I hope you are doing well.

Thank you for sharing this. To better understand why the meeting invite content appears differently for the recipient, please provide a few more details below:

1. Which app was used to send the meeting invite, Microsoft Teams or Outlook?
2. Which app was used to open the meeting invite on the recipient side, Microsoft Teams or Outlook?
3. Does the issue happen with all recipients, or only with one specific recipient?
4. If possible, please share screenshots from both sides with your sensitive information blurred or removed.

Once I have this information, I'll be able to provide you with more accurate and targeted solutions for the issue.

Thank you for your patience during the troubleshooting process. I'm looking forward to your reply.

The behavior described matches known issues where message bodies or meeting requests appear with distorted or collapsed formatting when opened by recipients.

For Teams meeting invites, the body is delivered via Exchange/Outlook. Formatting problems typically occur when:

• The message body is converted between HTML and plain text.
• The client or server does not handle the body format correctly.

Relevant documented issues include:

• Meeting requests created in HTML by an EWS/Exchange application being rendered as plain text in Outlook, causing improper content rendering. This is caused by Exchange not converting the body to the correct format and is fixed by installing the appropriate Exchange update rollup.
• Messages (including meeting requests) showing strange or mixed characters when a Windows “Beta: Use Unicode for UTF-8 worldwide language support” setting is enabled. Disabling this setting on the sender’s machine prevents new items from displaying garbled or collapsed content.

Actionable steps:

1. If the environment uses on-premises Exchange (for example, Exchange Server 2010 or 2019) behind Teams/Outlook:
   • Ensure the Exchange server is updated to the latest cumulative update or the specific update rollup documented for the version in use. This resolves known body-format conversion issues for meeting requests.
2. On the sender’s Windows device (where the Teams/Outlook invite is composed):
   • Open Settings → Time & Language → Language → Administrative language settings → Change system locale.
   • Clear the checkbox “Beta: Use Unicode for UTF-8 worldwide language support.”
   • Restart the computer and send a new Teams meeting invite to verify whether the formatting now remains intact for recipients.

If the problem persists after these steps, check whether the invite body is being edited or processed by any EWS-based or other server-side applications that might be altering the format (for example, custom meeting-processing tools) and ensure those systems are updated as per the Exchange guidance.

References:

• Strange characters are displayed in meeting requests, read receipts, and IRM messages
• A meeting request that you send from an EWS application is in plain text format instead of HTML format when an attendee opens the request by using Outlook in online mode