Fix Microsoft 365 Email Not Connecting Through Bluehost
Question details
The user needs to connect a custom domain email via Bluehost to Microsoft Outlook and synchronize the calendar across a PC and iPhone.

- Product
- Microsoft 365
- Device & OS
- PC and iPhone
- Scenario
- Attempting to link a Bluehost-hosted custom domain email with Microsoft 365 Outlook to enable seamless mail and calendar syncing across multiple devices.
- Observed behavior
- The connection fails or calendars fail to sync because Microsoft 365 Personal does not support Microsoft-hosted Exchange mailboxes for custom domains, forcing the use of standard IMAP/POP protocols.
Verify your exact Microsoft 365 subscription type (Personal vs. Business) and ensure you have administrative access to your Bluehost DNS settings.
Configure Outlook for Microsoft 365 Personal using IMAP
Use this solution if you have a Microsoft 365 Personal subscription, which requires you to keep your mailbox hosted on Bluehost and connect via IMAP.
Microsoft 365 Personal does not provide a Microsoft-hosted Exchange mailbox for custom domains. You can still use the Outlook application, but you must connect to your Bluehost email using standard IMAP settings.
Please note that an IMAP connection will only synchronize your emails. Calendars and contacts will remain local to the device and will not automatically sync between your PC and iPhone.
Launch Outlook on your PC, click on 'File' in the top-left corner, and select 'Add Account'.
Enter your custom domain email address, click 'Advanced options', check 'Let me set up my account manually', and click 'Connect'. Select 'IMAP' from the list of account types.
Enter the incoming and outgoing mail server settings provided by Bluehost (typically mail.yourdomain.com). Ensure the correct port numbers and encryption methods are selected, then proceed to enter your password and connect.
Upgrade and Set Up Microsoft 365 Business for Exchange
Choose this solution if you require full synchronization of both mail and calendars across your PC and iPhone via Microsoft Exchange.
Try WPS Office for a Seamless Document Experience
While troubleshooting your domain connections and Outlook settings, consider using WPS Office for your document needs. It provides a lightweight, highly compatible, and completely free alternative to Microsoft Office.
- 1. Visit the Official Website: Navigate to the official WPS Office website using your preferred web browser.
- 2. Download the Installer: Click the 'Free Download' button to get the latest version compatible with your operating system.
- 3. Install and Launch: Run the downloaded installer file, follow the on-screen instructions to complete the setup, and launch WPS Office to start working on your documents immediately.

Frequently Asked Questions
Why aren't my calendars syncing between my PC and iPhone with Microsoft 365 Personal?
Microsoft 365 Personal connects to custom domain emails via IMAP, a protocol that only syncs email messages. To sync calendars and contacts seamlessly, you need an Exchange connection, which is only available with a Microsoft 365 Business plan.
What are the correct MX records for Microsoft 365 Business?
When you verify your domain in the Microsoft 365 Admin Center, Microsoft will generate a specific MX record unique to your tenant (usually formatted like yourdomain-com.mail.protection.outlook.com). You must use this exact record to replace your existing Bluehost MX record.
Can I keep my email hosted at Bluehost but still use the Outlook application?
Yes, you can use the Outlook desktop and mobile apps to read and send emails hosted by Bluehost. Simply add your account in Outlook by selecting 'IMAP' and entering the incoming and outgoing server credentials provided by Bluehost.





