In this article, we’ll look at what UPN (UserPrincipalName) suffixes in Active Directory are, how to add alternative suffixes in an AD forest, and change UPN suffixes of Active Directory…
If you are going to configure synchronization of your local (on-premises) Active Directory with Microsoft 365/Azure AD using Azure AD Connector (AADConnect), you must first check the object attributes in…
In this article, we’ll show several ways to check the license type and activation status of Microsoft Office 2022/2019/2016 and Office 365 copies on Windows computers. We’ll discuss how to…
Modern Authentication is enabled by default for all new Microsoft 365/Azure tenants. This authentication protocol is more secure than the legacy Basic Authentication. Microsoft plans to completely block the use…
In this article, we’ll look at how to hide a user or distribution group from the Exchange Global Address List (GAL). This guide applies to both the cloud Exchange Online…
In this article, we’ll look at how to install the AzureAD PowerShell module, connect to your Azure Active Directory tenant and get some information from Azure. Microsoft currently allows you…
Let’s consider some ways of exporting the Exchange Global Address List (GAL) or Offline Address Book to a text CSV file. GAL contains all email addresses of your on-prem Exchange…
There is a 20 MB limit on the maximum attachment size in the Outlook email client (including the latest versions of Outlook for Office 365 and Office 2019/2016). It doesn’t…
You can use different regional settings for user mailboxes in on-prem Exchange and Exchange Online (Microsoft 365). The mailbox regional settings define the time and date format, time zone, language…
In Exchange Server and Microsoft 365 (Exchange Online), you can create a whitelist of trusted email addresses, domains and IP addresses of senders, from which mail must be accepted regardless…