How to Add an Email Alias in Microsoft 365
Add an email alias in Microsoft 365 using the admin center or PowerShell. Learn aliases vs primary address, sending from an alias, and the proxy address rules.
MCSA Guru Team Sep 9, 2026 8 min read
#Exchange Online
14 guides
Shared Mailbox vs User Mailbox in Microsoft 365: What's the Difference?
Shared mailbox vs user mailbox in Microsoft 365: licensing, sign-in, sending, storage limits, and when to convert one to the other. A practical admin comparison.
MCSA Guru Team Sep 2, 2026 8 min read
How to Set Up Email Forwarding in Microsoft 365
Set up email forwarding in Microsoft 365 the right way: mailbox forwarding, inbox rules, deliver-and-forward, internal vs external, and why external forwarding may be blocked.
MCSA Guru Team Aug 23, 2026 7 min read
Safe Links vs Safe Attachments in Microsoft Defender
Safe Links and Safe Attachments both protect Microsoft 365 email, but they work differently. Here's what each does, when it triggers, and how to set up the policies.
MCSA Guru Team Aug 9, 2026 8 min read
How to Fix the Teams Calendar Missing in Microsoft Teams
Teams Calendar missing? Fix it by checking the Exchange mailbox, app permission policy, license, cache, and re-pinning the Calendar app on desktop and web.
MCSA Guru Team Jul 31, 2026 8 min read
How to Export a Microsoft 365 Mailbox to PST
Export a Microsoft 365 mailbox to PST two ways: a Content Search eDiscovery export for admins and Outlook's import/export for a single user. Covers permissions, when to use each, and compliance.
MCSA Guru Team Jul 30, 2026 7 min read
How to Recover Deleted Emails in Exchange Online
Recover deleted emails in Exchange Online: restore from Deleted Items, use Recover Deleted Items for the dumpster, understand retention windows, single item recovery, and admin recovery.
MCSA Guru Team Jul 23, 2026 7 min read
How to Trace an Email Message in Exchange Online
Use message trace in the Exchange admin center to find where an email went: read Delivered, Pending, Failed, and Quarantined statuses, and run a detailed trace for older mail.
MCSA Guru Team Jul 9, 2026 7 min read
How to Add a Custom Domain to Microsoft 365
Add your own domain to Microsoft 365: verify ownership with a TXT record, set the right MX, CNAME, SPF, and DKIM records, and fix common verification failures.
MCSA Guru Team Jul 2, 2026 8 min read
How to Stop Users from Auto-Forwarding Emails Outside the Company
Stop Microsoft 365 users from auto-forwarding email outside your company. Use the outbound spam policy, anti-phishing, and mail flow rules to block external forwarding.
MCSA Guru Team Jun 24, 2026 8 min read
How to Fix Microsoft 365 Email Not Sending or Receiving
Microsoft 365 email not sending or receiving? Work through service health, message trace, MX and SPF, mail flow rules, quarantine, and full mailboxes step by step.
MCSA Guru Team Jun 17, 2026 9 min read
Pillar Guide
Cutover Migration to Microsoft 365 Explained
A complete cutover migration guide for Microsoft 365: when it fits, the right step order, MX and autodiscover changes, and the pitfalls to avoid.
MCSA Guru Team Jun 10, 2026 10 min read
How to Create a Shared Mailbox in Microsoft 365
Create a shared mailbox in Microsoft 365 the right way: admin center and Exchange admin center steps, Full Access vs Send As permissions, and the 50GB license rule.
MCSA Guru Team Jun 3, 2026 8 min read
How to Fix Outlook Keeps Asking for Password in Microsoft 365
Outlook keeps asking for your Microsoft 365 password? Work through cached credentials, modern auth, MFA, and broken profiles with these step-by-step fixes.
MCSA Guru Team May 28, 2026 12 min read