Download the Mirvish App
So Long, Farewell Zimbra - Hello! Exchange
This page last updated on September 23, 2025
Outlook Exchange Migration Is now complete!
The migration to Microsoft Exchange is now complete; however, there was an issue with the final synchronization for some users. This means some emails were not copied over to Exchange. These are emails that arrived yesterday in your Zimbra inbox.
If you notice missing messages, you can retrieve them by:
1. Logging in to the old Zimbra server at oldemail.mirvish.com
2. Locating the missing emails
3. Forwarding them to your new Exchange address: username@mirvish.onmicrosoft.com. These forwarded emails will then appear in your Exchange account.
Please note that your @mirvish.onmicrosoft.com address is only a backup for migration purposes and should not be shared or used as your regular email address.
If you experience any other issues, please open a ticket.
Important reminders:
- All new emails are now available at outlook.com.
- Do not use Apple Mail or other desktop mail clients as they are still pointing to the old server.
- We will be sending instructions shortly on how to update your smartphone email settings.
- For all further updates and training materials, please visit this page www.mirvish.com/exchange
Thank you for your patience and cooperation
If You Need Help
Should you run into any issues on Monday, please open a help ticket here: https://helpdesk.mirvish.com
Use the ticket type: “1 - MOVING TO EXCHANGE”
We’ll prioritize tickets as quickly as possible.
Smartphones & Tablets
On Monday, we’ll share step-by-step instructions on how to remove your Zimbra account and add your new Outlook Exchange account to your devices. Keep an eye on this page for updates.
A HUGE thank you to everyone for your cooperation—and an extra shout-out to our amazing IT team, who have been working tirelessly for months to make this migration happen. 🙌 🙌🏽 🙌🏼
📺 Video Support
As we prepare for the upcoming migration to Outlook Exchange, we’ve created a set of short training videos to help you get comfortable with the new system. These cover the basics and will make the transition much smoother. We strongly encourage you to take a few minutes to watch them before the migration. A little preparation now will save time and avoid frustration later.
Thank you for taking the time to get ready—we’re confident this will help make the switch as seamless as possible.
Settings - A Quick Tour
Adding & Removing Email
How to access shared accounts
Welcome to Microsoft Outlook Exchange
How to create Signatures
MS Outlook Exchange - Rules
Adding What's On Stage Calendar
Need a logo for your signature? Signature Logos
🗓 Timeline & Access
When is the migration happening?
The migration starts Sunday, September 14 at 5:00 PM.
Expect some downtime during the changeover—we’ll send more details closer to the date.
When can I access my new email?
You’ll start using Outlook on the web (outlook.com) on Monday morning, September 15.
Will we be notified when the migration is complete?
Yes, we’ll send a communication once everything is ready.
Will there be support if I can't access email on Monday?
Yes, support will be available Monday morning to help with any access issues. Please open a ticket. (Help ticket "1 - MOVING TO EXCHANGE")
💻 Email Access & Setup
Will I use Outlook on the web permanently?
For the first week, everyone will use Outlook on the web. After that, we’ll assist with setting up desktop apps like Apple Mail.
Can I continue using my current email app (e.g., Apple Mail)?
Not immediately. Apps currently connected to Zimbra will stop receiving mail after the switch. We’ll provide step-by-step setup instructions before September 14.
Where will setup instructions be shared?
Instructions will be emailed to everyone and made available internally.
📦 Data Migration
What data will be migrated?
- Emails - Main calendars - Contacts from your “Contacts” folder
What won't be migrated?
- Shared/extra calendars - Emailed Contacts folder - Any non-standard Zimbra data
Will folders and email history be preserved?
Yes, all folders and historical emails will be migrated.
Will recurring calendar events and attachments be migrated?
Yes, both should carry over.
Will email rules/filters be transferred?
No, rules and filters from Zimbra will need to be set up again in Outlook.
👩👩👧 Contacts & Address Book
What’s the difference between “Contacts” and “Emailed Contacts”?
- Contacts = People you manually saved (these will migrate).
- Emailed Contacts = Automatically saved addresses from replies (these won’t migrate).
How do I keep important emailed contacts?
Before September 14, move them manually into your main “Contacts” folder.
Is there a deadline for moving contacts?
Yes—do this before September 14, before the migration begins.
🗃 Accessing the Old System
Will I still be able to use Zimbra after the move?
Yes, Zimbra will remain accessible in read-only mode in case anything was missed.
Can I still send email from Zimbra?
No. After the switch, all new mail will be sent/received via Outlook.
Will the Zimbra server eventually be shut down?
Yes. We’ll give advance notice before it’s permanently retired, but for now you can expect it to be available for the foreseeable future.
✅ What Do I Need to Do Right Now?
1. Provide Your Email Password - You would have received an email this week with a link to record your password. This allows us to perform the migration on your behalf securely.
2. Submit your personal details into this form, Data Collection - Exchange Migration
Make sure to fill out all fields so we have your correct details.
3. Review Your Contacts - Move any important addresses from “Emailed Contacts” into your main “Contacts” folder.
4. Check your outlook account for accuracy - As of September 2nd, you can log in to Outlook to check your data. You want to make sure your emails, folders, calendars and contacts have been migrated.
5. Create rules/filters in Outlook - We recommend doing this ahead of the migration, you can access your account as of September 2nd by logging in to outlook.com.
6. Add your signatures to Outlook - We recommend doing this ahead of the migration and will have full instructions closer to September 14.
❓ Need Help or Have Questions?
If you have questions or run into issues during or after the migration, support will be available by opening a ticket (Help ticket "1 - MOVING TO EXCHANGE"). We’ll continue to provide updates as we get closer to September 14.