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The Calendar Checking Tool for Outlook is a command-line program that checks Outlook Calendars for problems. To use...
Calendar checking tool for Outlook
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Exchange Server
Give read-only access to one or more mailbox folders
To give a user (read-only in this case) access to specific folders of another mailbox, without giving them full access...
Export list of licenced users from Microsoft 365
A simple script to export a list of licenced users from your M365 tenant: Get-MSOLUser | Where-Object { $_.isLicensed...
Change O365 Group email address
You cannot currently change an O365 group email address from within the portal, it has to be done via PowerShell. For...
Export Exchange mailbox to PST without Outlook
If you do not have access to a mailbox within Outlook (to facilitate a simple export to PST) you can do so via...
List all distributions lists and members via PowerShell
A quick script to run against your Exchange server (on-premises, or O365) to list all distribution groups along with...
Outlook: Global Address List (offline) not updating
Recently had a few instances where clients running Outlook 2016 in cached mode (connected to O365 Exchange Online)...
Random missing items in Outlook folders
Recently had a case where the Sent Items folder in Outlook (cached mode) would not show any messages after a specific...
Count number of folders in mailbox (Exchange or O365)
Despite there being a limitation on the number of folders an Exchange on-premises/O365 based mailbox will allegedly...
Grant user access to list of calendars via PowerShell
If you have a user that requires access to several other user's calendars you can set the permissions using PowerShell...
Outlook certificate mismatch errors (On premises Exchange / SBS)
If you are using - usually with SBS installations - the self signed certificate with your on-premises Exchange server,...
Office365 migration – Outlook autodiscovers internal Exchange server
During a cutover migration you will usually end up with the on-premises Exchange server (as part of SBS for example)...