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Use Case: If an email was sent in error or a malicious email has been sent to a large number of recipients, one can find and remove that data using Microsoft 365 Security and Compliance Powershell. First, Connect to Microsoft 365 Exchange Online ...

Azure Dynamic Group Membership Rules Rule Syntax to add group members based on the criteria Account is active Primary Email Address is at domain example.com (user.accountEnabled -eq true) -and (user.mail -contains "@example.com") Licen...

Change filter settings in Office365 Outlook on the Web Login to your account at https://outlook.office.com Click the gear icon on the top right of the page. Click Mail in the right column toward the bottom. In the left column of the...

To share a Sharepoint folder with an external user, first select the folder and then click Share. Select the type of sharing by clicking the People in... link and then change it to Specific People. Select Specific People. Optionally, check the box ...

Azure applications are used for Single Sign On, among other things. To use SSO, the user has to have access to the application. First, login to the Microsoft Admin Portal then go to Azure Active Directory (or skip this step and go directly to Azure Active D...

Prerequisites: Connect to Exchange Powershell Get the rules for a mailbox Get-InboxRule -Mailbox "name@example.com"

Prerequisites: Install Exchange Powershell To connect to Exchange Powershell with Multi-Factor Authentication, in a Microsoft Powershell windo, run the following command.  Connect-ExchangeOnline This will open a new login window. After login, the window wil...

When exporting the results of a Microsoft Purview Content Search, the user must have the permission. This permission cannot be granted by the same user to which it is being granted. First, Connect to the Security and Compliance Powershell Add eDiscovery Ma...

To connect to the Microsoft 365 Security and Compliance Powershell: Open a Powershell Window Type the following command, where <UPN> is the admin username Connect-IPPSSession -UserPrincipalName <UPN>

There are 3 authentication methods to verify email coming from a specific domain is authentic; SPF, DMARC and DKIM. This reduces or eliminates spammers and phishers from using a domain to falsely appear authentic. How does SPF work? Sender Policy Framework...

At the beginning of the record, v=spf1 identifies this as an SPF record. At the end of the record, -all defines the policy. Dash -  for hard-fail, tilde ~ for soft-fail. In between the identity and policy, each include: defines the server domain names that are...

At the beginning of the record, v=DMARC1 identifies this as a DMARC record. The following components define the policy and action if failed. Create a TXT record with _dmarc as the host. Example v=DMARC1; p=quarantine; rua=mailto:<DMARC Report Address>; ruf...

DKIM requires setup on the sending server. In the case of Microsoft 365, this is configured in 365 Defender. To enable DKIM in Microsoft 365, the DNS record has to exist. The actual DKIM record is simple, but the server is queried for the key. Below are the ac...

Create a deployment package. If the files are publicly available, you can download from a web URL. Download the setup files according to the deployment config. ./setup-file.exe /download config-file.xml Install the applications according to the deploym...

Download a file from the internet to your harddrive using Powershell. Invoke-WebRequest -Uri https://<path-to-internet-file> -OutFile <path-to-local-file>

Get size, date or FolderId for folders in an Exchange Mailbox. Get-MailboxFolderStatistics -Identity <mailbox-identity> To see folders outside of the IPM Subtree, add the -FolderScope flag. -FolderScope NonIPMRoot   Export Results to a CSV Get-MailboxF...

The default BookStack installation script for Ubuntu 20.04/18.04/16.04 only configures the Apache2 server to use HTTP, not HTTPS. With plain HTTP becoming more and more obsolete each day, you'll likely want to use HTTPS instead in combination with a Let's Encr...

Rosetta is required for compatibility with some applications. To install Rosetta on a Mac, open the terminal and run the following command. softwareupdate --install-rosetta --agree-to-license  

List Printers Get-Printer Remove Printer Remove-Printer -Name "HP Deskjet 1510 series"   Add Printer Add-Printer -Name "HP Deskjet 1510 series" -DriverName "HP Deskjet 1510 series" -PortName "USB003"   Add a printer po...

Set the username and password dscl . -passwd /Users/<username> <password> Set the user's default shell dscl . -create /Users/<username> UserShell /bin/bash Set the user's display name dscl . -create /Users/<username> RealName "Real Name" ...