Why are messages saved onto shared calendar being converted to msg files?

Question

Why are messages saved onto shared calendar being converted to msg files?

Elliot Mather 0

I have an admin user who manages calendars for numerous people. In past they have been able to add outlook messages as attachments to meetings in their calendars so that they can view them on mobile devices in outlook app while they travel.

Now when they attach a message it attaches OK and shows as an outlook item but if they check a few mins later it appears to have converted the message to a .msg file which the users are unable to open on their mobile devices.

If they save messages as attachments to appointments in their own mailbox they don't convert, only for the users whose calendars are managed.

This was working previously and has just started happening. Any ideas?

I've tried replication issue in outlook OWA but can't attach messages to appointments in OWA.

1 answer

Your answer

Answer 1

SokiGuo-MSFT 31,461 Microsoft External Staff

Hi @Elliot Mather

Welcome to our forum!

For better research, please provide more details about this case:

What is your Outlook client version? Make sure to update to the latest version.

What is your account type (POP/IMAP/Exchange)?

Can I know if you get any error messages when you open .msg file from your mobile device?

There is a similar thread here, and you can refer to the solution provided by this user.

User's image

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Elliot Mather 0 Reputation points

2024-03-25T11:55:55.2+00:00

Using exchange online and outlook version 2402 (Build 1732).

When attempting to open the msg files on mobile device get error saying that 'file format is not supported'. This happens using outlook app or native mobile app.
SokiGuo-MSFT 31,461 Reputation points Microsoft External Staff

2024-03-27T06:13:39.47+00:00

Hi @Elliot Mather

Thanks for your reply!

Please note that .msg files are not supported in Outlook mobile for iOS.

Is there any difference after trying the methods provided above?
Elliot Mather 0 Reputation points

2024-03-27T08:49:51.39+00:00

Hi,

yes I know that .msg files aren't supported on iOS and this is the issue. before when saving an email as an attachment into a shared calendar it showed as an outlook item and users were able to open these on their iOS devices. Now when we drop an email as an attachment on an appointment in initially shows as an Outlook item but after saving and closing it then shows as a .msg file which can't be opened. Something has changed that is converting these outlook item files to .msg when they are saved into shared calendars.
SokiGuo-MSFT 31,461 Reputation points Microsoft External Staff

2024-03-29T08:51:55.3733333+00:00

Hi

Thanks for your reply. The problem is to avoid the file format becoming. msg. So, try to use this way to prevent Outlook Item from being converted to .msg file.
SokiGuo-MSFT 31,461 Reputation points Microsoft External Staff

2024-04-04T08:05:37.92+00:00

Hi @Elliot Mather

Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.

Share via

Why are messages saved onto shared calendar being converted to msg files?

1 answer

Your answer