List/Audit all folder delegate permissions on an Exchange mailbox

We recently needed a way to see what delegate permissions a client had given across the vastness that is their mailbox and it’s folder structure. Digging around online I found this script from John Hopkins which got me 90% of the way there. Their script was missing three things for my use case: Delegate permissions … Read more

Powershell script to report on total send/received e-mails in Exchange v2.0

An updated and improved version of my old script from here. This script has been tested against Exchange 2016 CU4. I do not know if it will work against older versions of Exchange. The script can be configured to run as a scheduled task and it generates a e-mail report of users who have sent … Read more

Error 500 when downloading/accessing OAB in Exchange 2016

We’ve just finished migrating all of our users from a legacy AD forest with Exchange 2010 into a whole new AD forest with Exchange 2016. During the initial deployment of Exchange 2016 a new mailbox store was created, the existing system mailboxes were migrated (mailbox move) to the new store and the default Exchange 2016 … Read more

Single Mailbox Recovery can’t connect to Exchange

Our AD structure contains three domains, one root domain ( and two sub-domains, one for servers/services ( and one for user accounts ( (Users live here) (Privileged IT accounts and Exchange live here) We are running into problems with NetApp Single Mailbox Recovery where it is unable to connect to the target … Read more

Exchange users unable to share calendars post AD/Exchange migration

We just recently went through an AD forest migration AND an Exchange 2010 -> 2016 migration across forests at the same time. Good times. One of the many issues that came up after the migration was the majority of our users being unable to share their calender’s with other users. When trying to share via … Read more