8. How to Create Shared Calendars, Email Disclaimers, and Block User Access in Microsoft 365 (Video in Khmer)

Hello my friend! 📅 Today we learn 3 useful thing that admin do often in company: make shared calendar for team, add disclaimer at bottom of every email, and block user who should not sign in anymore.

What You Will Learn

✅ Create shared calendar, so whole team can see and add schedule
✅ Create disclaimer rule, so every email have company message at bottom
✅ Block user access to Microsoft 365 and Exchange Online

3 Feature — Quick Look

Feature	What It Do	Example
Shared Calendar	Many people see and edit same calendar	Team calendar for leave, meeting, and event
Email Disclaimer	Add text auto at bottom of email	"This email is confidential. If you not the right person, please delete it."
Block User Access	Stop user sign in, but keep account and email	Staff leave company today

31 - Create a Shared Calendar (5:55)

Shared calendar help team know who is on leave, when have meeting, or company holiday. Everyone in team open same calendar in Outlook. No need send email ask "Are you free tomorrow?" anymore.

32 - Create Email Disclaimer Rule (7:24)

Disclaimer is short text that Exchange add auto at bottom of email. Company use it for legal message, confidential note, or contact info. Admin make it with mail flow rule (transport rule), so user no need type by themself.

Example disclaimer:

This email and any attachment are confidential and only for the person
it is send to. If you receive this email by mistake, please tell the
sender and delete it.

33 - Block User Access to Microsoft 365 and Exchange (4:42)

Staff leave company, or account maybe hacked? First thing to do: block sign-in. User cannot log in to Outlook, Teams, or any Microsoft 365 app, but account and email still there. Admin can check email later, or convert to shared mailbox.

Tips

For shared calendar, give edit permission only to people who really need add event. Other people just view is enough.
Make disclaimer short and clear. Long disclaimer make email look messy, and nobody read it.
Set disclaimer rule for email going outside company only. Inside staff don't need see it every time.
Choose fallback action "Wrap" in disclaimer rule, so if Exchange cannot add text (like encrypted email), email still send.
Always send test email to yourself and to Gmail after create disclaimer, check how it look.
When block user, also sign out all session and reset password. Block sign-in alone may take some time to kick user out from app already open.
Block first, delete later. Don't delete user right away — you may need their email or file.

Conclusion

Shared calendar make team work together easy, disclaimer make every email look professional and safe, and block user access protect company when staff leave. These 3 small job make big different for admin. Watch 3 video and try on test user first. Keep learning my friend! 💡