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How to Send Calendar Invitations from a Third-Party Address in Outlook for Android
Question details
The user wants to send calendar invitations using a third-party email address within the Outlook for Android app, but the invitations are being sent from an automatically generated Outlook.com address instead.
- Product
- Outlook for Android
- Device & OS
- Android
- Scenario
- Attempting to create and send a calendar event or invitation from a third-party email account (POP/IMAP) configured in the mobile app.
- Observed behavior
- The calendar invitation is sent using a generated, random Outlook.com alias rather than the intended third-party email address due to synchronization protocol limitations.
Verify your email account configuration settings in Outlook for Android to determine whether it is set up as a POP, IMAP, or Exchange account, as POP and IMAP protocols do not natively support calendar synchronization.
Set an Outlook.com Alias as Primary
Change your Microsoft account's primary alias to an Outlook.com address to prevent the app from generating a random sender address for calendar invites.
When a non-Microsoft email address is set as the primary address on a Microsoft account, Outlook's backend automatically generates a placeholder Outlook.com address to handle calendar features. Updating the primary alias resolves this mapping issue and enables proper synchronization.
Open a web browser, sign in to your Microsoft account online, and navigate to the 'Your info' tab in the top navigation menu.
Click on 'Manage how you sign in to Microsoft' under the Account info section.
Select 'Add email' and choose the option to create a new Outlook.com email address as an alias for your account.
Once added, click the 'Make primary' button next to the newly created Outlook.com alias.
Open the Outlook for Android app, navigate to 'Settings', select your account, and tap 'Remove Account'. Re-add the account using the new Outlook.com primary alias.
Use a Third-Party Synchronization Utility
Use a dedicated CalDAV or sync tool if you must use an IMAP/POP account and want your calendar to reflect on your Android device.
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Frequently Asked Questions
Why does Outlook for Android send my invites from a random outlook.com address?
This occurs because your Microsoft account uses a third-party email address as its primary alias. Since third-party addresses cannot natively host Microsoft Exchange calendars, Outlook generates a random placeholder address to process the calendar invitations.
Can I sync a calendar from a locally saved PST file to my Android phone?
No. Calendars stored locally in PST or OST files on your desktop do not automatically synchronize to mobile devices. You must use an Exchange account or a cloud-synced calendar service to view them on Outlook for Android.
Do IMAP or POP email accounts support calendar synchronization?
Generally, no. IMAP and POP are email-only protocols. While they allow you to send and receive emails in Outlook for Android, they do not have the capability to synchronize calendar events or contacts natively.
