The following articles were included in our Exchange Messaging Outlook (EMO) newsletter published on July 17, 2025.
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Today's Highlights »
- Migrating from IMAP to Microsoft 365
- Coming Soon to New Outlook: Export to PST
- Outlook.com appointment autofill locations
- Microsoft Answers Community Forums
Migrating from IMAP to Microsoft 365
A small business wanted to move their IMAP accounts to Microsoft Exchange and asked how to migrate their mailboxes.
One option (if using classic Outlook) is to export the mailboxes to a PST and import into the new mailbox in classic Outlook. While this is easy if you only have one account to migrate and use classic Outlook, Microsoft has a migration wizard in the Exchange admin portal. Once it's set up, it runs on the server and pulls mail in from the IMAP server.
You'll need to set up your mailboxes in exchange online and assign licenses to the mailboxes before starting the migration.
1. Log into the admin portal and open Migration batches page at https://admin.exchange.microsoft.com/#/migrationbatch
2. Click Add a migration batch and follow the steps, beginning with entering a name for your migration and choosing Migration to Exchange Online from the menu. Click Next.
3. On the next page, choose the type of migration. Choose IMAP or Google Workspace if migrating from Google. Click Next.
4. Review the prerequisites then click Next.
5. Choose Create a new migration endpoint and click Next.
6. Enter a name for the migration end point. Click Next.
7. Enter the IMAP server name, authentication and encryption types. Note: even if you use port 143 in your mail app, you need to use 993 and choose the encryption type for the migration to work.
8. After saving the endpoint, you’ll add your usernames and password to a spreadsheet. The information is entered with the Exchange email address first, the IMAP address as the username and the IMAP password.
9. Step through the rest of the screens then schedule the migration. Mail should start showing up in your Exchange mailbox within a few minutes.
If you are migrating a custom domain to Microsoft 365 you can delete the migration batch a few days after changing the mx records.
Coming Soon to New Outlook: Export to PST
The ability to export to a PST file is rolling out now to new Outlook users.
Users receiving the targeted release will have it now. (If you have Microsoft 365 and are in one of the insider channels, you should have targeted release.)
If you are not in target release, you may have it now, but if not, will have the option to export to PST within the next week or so.
Look for Export options in View tab > View settings > Files > Export.
Click Get Started button then choose the account and the folder to export. If you choose a folder with subfolders you can export the subfolders too. To export the entire mailbox, select your email address as the folder.
You can also view your recent export history from the same page.
Outlook.com appointment autofill locations
A few weeks ago, users started complaining that all of the Outlook apps stopped detecting and autocompleting calendar event locations based on business names or partial addresses in consumer accounts. (Business accounts worked when tested it.)
This was fixed earlier this week. Also fixed is the “service error” asking users to log in with work or school account when they open an appointment form.
Microsoft Answers Community Forums
The forums in the Microsoft Community (at answers.microsoft.com) are in the process of shutting down and moving to the Q&A forums at learn.microsoft.com.
New threads cannot be created in the Answers community and existing threads will be read-only until the transfer is complete.
The new forums are at Microsoft Q&A | Microsoft Learn
New & Updated Outlook Support Articles
Classic Outlook crashes opening or starting a new email
Other Resources
Announcing Exchange 2016 / 2019 Extended Security Update program | Microsoft Community Hub
Introducing more control over Direct Send in Exchange Online | Microsoft Community Hub