June 2018 – Deep in PowerShell – Detective Work (Calendar Permissions)

Investigating what calendars a user or group has access to Using a recent incident as an example here. User C was found to have full access to User A and User B's calendars; the CEO and GM respectively. But how did they have access? Ran the following command to see what permissions were present on … Continue reading June 2018 – Deep in PowerShell – Detective Work (Calendar Permissions) →

May 2018 – Hybrid O365 User Life and Death

Mailbox Restore/Recovery Just sharing some of the fun processes I learnt and played with this month, to restore some tricky, deleted AD users. Microsoft Troubleshooter Tool https://blogs.technet.microsoft.com/exchange/2016/09/02/introducing-the-mailbox-recovery-troubleshooter/ https://aka.ms/MailboxRecovery Restoring Soft-Deleted Mailbox to another Mailbox https://community.spiceworks.com/how_to/122196-so-you-need-to-recover-a-soft-deleted-disconnected-mailbox-merged-to-another-user-on-exchange-online #Connect to Office 365  $UserCredential = Get-Credential  $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection  Import-PSSession $Session # List the … Continue reading May 2018 – Hybrid O365 User Life and Death →

April 2018 – The Mystery of the Reserved Domain

Some of you may have already known about this, but it is unlikely you would come across this unless you have curious users. When you have a new or existing O365 Tenant and you want to add a custom domain, and you receive the following message: Your domain cannot be added or verified at this … Continue reading April 2018 – The Mystery of the Reserved Domain →

March 2018 – Restricting Creation of O365 Groups

Office 365 Groups, essentially the backbone of O365: Image courtesy of Microsoft - https://dev.office.com/blogs/GroupsRESTAPI Each Team you create in MS Teams creates an Office 365 Group; Each SharePoint Site you create adds an Office 365 Group; Planner creates an O365 Group per Plan you add; You can even convert your current Distribution Groups to Office 365 … Continue reading March 2018 – Restricting Creation of O365 Groups →