Deleting contents of a mailbox

So came across an account that had 450000 items that were log files that were being captured in a mailbox. I wanted to delete all the enteries with powershell instead of going through the GUI. Here the command I used to get it done: Search-mailbox -Identity [email protected] -DeleteContent -Force
Provisioning a New Office 365 User and Mailbox from Exchange Hybrid via PowerShell

Working with many Office365 clients, I receive queries on how to go about provisioning users and mailboxes for an Exchange hybrid deployment. To begin with, letâ€™s assume aÂ couple things. We have a Windows 2012 R2 member server with Azure AD Connect (AAD Connect) version 1.1.105.00 (or newer) and the Azure AD Module for PowerShell installed; […]
Add Alternate Email Address or Recovery Email Address for Office365 Administrator

In Office365, depending on the admin role of an account you may want to add an alternate email address for password recovery. This is a basically a self-service password reset for Administrators of Office365. Quick way to do this is with PowerShell: #Connect to Office365 Import-Module MSOnline Connect-MsolService $O365Cred = Get-Credential $O365Session = New-PSSession â€“ConfigurationName […]
Outlook 2016: Remove Duplicate entries in Room Finder

In Outlook 2016 some users may noticed dual entries in the Room List: TheÂ roomÂ listÂ behavior that we seeÂ Â inÂ Outlook is by design. When weÂ use aÂ RoomÂ ListÂ Â for a meeting, itÂ is storedÂ inÂ theÂ Â Most Recently Used entriesÂ inÂ the registry. When we create a new meeting, we will see this MRU entryÂ inÂ the top of theÂ RoomÂ ListsÂ . The sameÂ RoomÂ ListÂ will be seen againÂ inÂ the drop down which […]
Office365: List Your Business Canâ€™t Live Without

When you have a lot of conference rooms, equipment or special rooms mailboxes it is hard to list or find available free rooms during a particular time slot. Luckily, Office365 and Outlook 2013/2016 have a special feature called ‘Room Lists’, which enable you to find and scheduleÂ a room quickly based on availability and offer […]
Hack: Microsoft Outlook AutoComplete

Outlook maintains the AutoComplete list. The list is used by both the automatic name-checking feature and the automatic completion feature. The AutoComplete list, also known as the nickname cache, is generated automatically when you send email messages from Outlook. The list contains SMTP addresses, LegacyExchangeDN entries, and display names for people to whom you have […]
Cleaning up Office365 Groups Mess

Office 365 Groups are a shared workspace for email, conversations, files, and events where group members can collectively get stuff done. It compliments the introduction of Microsoft Teams. The main thing to keep in mind is that this feature is still evolving. Why is it important to control Office 365 Group creation? This feature is […]
Set password never to expire for users in a particular domain (Bulk mode)

Let me start by saying that I don’t recommend doing this at all. Password Never Expires is bad security practice, but there are situations that might require it. I had a similar request on how this could be done. Setting it for multiple users: #Connect of Office365 Import-Module MSOnline $O365Cred = Get-Credential $O365Session = New-PSSession […]
Get PasswordAge for users in a particular domain

In Office365 if you have more than one domain in a subscription, there are times where you may want to get the password age for users of that domain. In my case to check which users are covered and meeting policy and get the users addressed. Get-MsolUser -All -DomainName "yourdomainname.com" | select DisplayName, LastPasswordChangeTimeStamp,@{Name=â€PasswordAgeâ€;Expression={(Get-Date)-$_.LastPasswordChangeTimeStamp}} The […]
How to force update GlobalAddressList in Office 365?

This post explains how to manually force and update the global address list in Office 365. Updating the global address list requires to have the Address List Management role. By default, nobody has this role. 1. Assign the AddressList Management role Login with your administrator account to the Office 365 portal. Go to Exchange Admin […]

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Deleting contents of a mailbox

So came across an account that had 450000 items that were log files that were being captured in a mailbox. I wanted to delete all the enteries with powershell instead of going through the GUI.

Here the command I used to get it done:

Search-mailbox -Identity [email protected] -DeleteContent -Force