This is what I had to do so that Mac users could send emails with up to 50Mb files
Navigate to :
C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\exchweb\ews
TAKE BACKUP af all web.config files
Open with Notepad and find maxrequestlength and change it to 51200000…. for 50Mb
default 2097151 bytes or 15Mb
Then in CMD run these four commands
- cd \Windows\System32\inetsrv
- appcmd set config “Default Web Site/ews” -section:requestFiltering -requestLimits.maxAllowedContentLength:51200000
- appcmd set config “Default Web Site/owa” -section:requestFiltering -requestLimits.maxAllowedContentLength:51200000
- iisreset /noforce
When the reset is done, users should be able to send >50Mb files…. Once I had to reboot the server for this to work but it does 🙂