You can disable the Autodiscover using the below cmdlet
Get-ClientAccessServer | Set-ClientAccessServer
-AutoDiscoverServiceInternalUri $null
Or Disable on client from the registry
HKEY_CURRENT_USERSoftwareMicrosoftOffice14.0OutlookAutoDiscover]
"Excl...
If you have used Outlook for any length of time, you've probably heard
of winmail.dat - you may not have seen it but someone you have sent a
message to may have complained about not being able to open an
attachment you sent.
In the words of Microsoft:
...
The default maximum message size for Office 365 mailboxes is 25 MB,
and they aren't going to change the setting on existing accounts. It
turns out that some clients want an even SMALLERÂ setting than 25 MB
and many don't want to change the current setting ...
mdimport -g /Applications/Microsoft
Outlook.app/Contents/Library/Spotlight/Microsoft Outlook Spotlight
Importer.mdimporter -d1 ~/Library/Group
Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile