Office 365

PowerShell is the preferred way to manage access to calendars in user and shared mailboxes that are hosted on on-premises Exchange Server or on Microsoft 365. This guide explains how …

There are generally two criteria to identify Microsoft 365 inactive users: Administrators can consider one or both criteria when analyzing inactive Microsoft 365 users for possible clean-up and freeing up …

Security Defaults are a set of policies that are enabled by default for Microsoft 365 accounts to provide enhanced account and organizational security. It comes free with all Microsoft 365 subscriptions …

In this tutorial, we will show how to send Microsoft 365 password expiration notification emails to users using PowerShell and Microsoft Graph API. Introduction When Microsoft removed password expiration from …

Businesses and individuals use automatic replies in Outlook to let senders know how their messages were received or give them further details. The common practice is to use Shared Mailboxes …

Sending messages from Exchange shared mailboxes is standard for businesses. Users may experience email delivery failure when sending messages as another mailbox with the following non-delivery report (NDR) examples: This …

There is no convenient way to find out if Multi-Factor Authentication is enabled for a particular user and what MFA methods are configured in the Microsoft 365 Admin Centre web …

This article explains how to search Microsoft 365 Unified Audit Logs using the Search-UnifiedAuditLog PowerShell cmdlet (including filtering by record type, operations, user, and IP address, and handling large result …

You can use Exchange Online retention policies and tags (MRM) to automate mailbox lifecycle management tasks (such as archiving and deleting email items after a specified retention period). For organization-wide Microsoft …

This article explains the possible causes for the “STARTTLS is required” error and how to fix it and send an email successfully. What Does the StartTLS is Required Error Mean? …