OWA/ECP Breaks if “Microsoft Exchange Server Auth Certificate” is Expired

If the “Microsoft Exchange Server Auth Certificate” certificate isn’t present on Exchange servers in the organization, follow these steps to create and deploy a new OAuth certificate to the Exchange server: Create a new OAuth certificate by running the following command: New-ExchangeCertificate -KeySize 2048 -PrivateKeyExportable $true -SubjectName “cn=Microsoft Exchange Server Auth Certificate” -FriendlyName “Microsoft Exchange Server Auth…

ReadReceipt on Active Sync Device

Starting from Exchange 2016, now you can disable Read Receipt Feature on Active Sync Device through cmdlet. Default Output would be: Get-CASMailbox <User> | fl ActiveSyncSuppressReadReceipt ActiveSyncSuppressReadReceipt : False You can set it $Ture and it will change following option in Outlook Web Access as well. Set-CASMailbox <User> -ActiveSyncSuppressReadReceipt $True