Forum Discussion
Sent Emails Missing in Outlook
One of my users noticed that they are missing messages from their sent items. We went through his sent messages and have determined that the missing emails typically have attachments that are 5 MB or...
If you are the admin and have the permission of E-discovery manager you can run an discovery search on the recipient mailbox and find the missing emails provided there was a retention policy or litigation hold or in-place hold on the mailbox .
Alternatively , you can also search your retention policies and see if there is no policy resulting in that behaviour . You can go to Exchange admin centre then to compliance management and then retention policies