Hello, I have been trying to adjust the OWA file attachment size limit for a few days now. I know the default limit is 10 MB. I have been trying to raise that limit to 50 MB with no success. Per ms exchange forums, I tried the following:
- Edited web.config and changed MaxRequestLength to 50000 (50 MB). All that seemed to do was now give a 404 file not found error while attaching a larger file.
- In Exchange Powershell, I ran Set-mailbox -id:"username" -MaxSendSize:50000. I used my account to test it with. This also had no effect.
- In Powershell, I also tried Set-transportconfig -MaxSendSize: 50000 . This too had no effect.
- Per instructions on the ms exchange website, I restarted the Store.exe service after each change above so that the changes would apply immediately. Still, the 404 error occurred.
One user suggested looking at the IIS7 logs to determine the problem, but I cannot find the logs either, nor can I understand why this limit change is so difficult to do.
There was also mention of changing the MaxSubmitMessageSize which is readonly and defaults to 10 MB. I have no idea how to change this either or where the setting is.
Lastly, the clients are mac/win and are using Outlook Web Access light. Thanks in advance for your help.