Exchange Connection Problems

How to Use Microsoft 365 Email Without Changing Your DNS Host

Guest Writer Oct 9, 2026 868 views

Question details

The user wants to configure Microsoft 365 for email and collaboration services without transferring their domain's DNS hosting away from their current provider.

How to Use Microsoft 365 Email Without Changing Your DNS Host

Product: Microsoft 365
Device & OS: not provided
Scenario: Setting up Microsoft 365 email routing and user accounts while maintaining the existing DNS and website hosting infrastructure.
Observed behavior: Requires step-by-step guidance on verifying the domain, creating users, and adding Microsoft 365 DNS records (MX, TXT, CNAME) to the current DNS host.

Before you start

Ensure you have administrator access to both your Microsoft 365 admin center and your current DNS hosting provider's control panel (e.g., SiteGround) before modifying any records.

Solution 1Recommended

Configure Microsoft 365 Records in Your Current DNS Host

Use this method to route your emails through Microsoft 365 by updating the specific MX and TXT records in your existing DNS provider's zone editor.

By manually adding Microsoft 365 DNS records to your current host, you can use Exchange Online for your emails while keeping your website exactly where it is. You do not need to change your nameservers.

Add and verify your domain

Sign in to the Microsoft 365 admin center, navigate to Settings, and select Domains. Click 'Add domain' and follow the setup wizard to verify ownership using a TXT record at your DNS host.

Create users and assign licenses

Go to Users > Active users and click 'Add a user'. Enter the required user details and assign a Microsoft 365 Business Standard (or equivalent) license so the user has an active mailbox.

Retrieve required DNS records

Continue through the Microsoft 365 domain setup wizard to access the specific MX, TXT, CNAME, and Autodiscover records required for your domain to function with Microsoft services.

Update records at your DNS host

Log in to your DNS provider's control panel (such as SiteGround's Site Tools). Open the DNS Zone Editor and carefully copy the exact values provided by Microsoft 365 into new MX, TXT, and CNAME records.

Configure Microsoft 365 Records in Your Current DNS Host

DNS Propagation: DNS changes are not always instantaneous. It can take anywhere from a few minutes to 48 hours for the new MX and Autodiscover records to fully propagate across the internet.

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Frequently Asked Questions

Will changing my MX records take my website offline?

No, MX (Mail Exchanger) records strictly dictate where your emails are routed. As long as you do not alter your nameservers or A records, your website will remain fully operational with your current host.

What is the purpose of the Autodiscover CNAME record?

The Autodiscover record allows email clients like Microsoft Outlook and mobile mail apps to automatically locate your Exchange server settings simply by entering your email address and password.

Why am I not receiving emails after updating my DNS records?

DNS propagation can take up to 48 hours. If the timeframe has passed, log back into your DNS host to ensure the MX record matches the exact value provided by Microsoft 365 and that there are no conflicting MX records pointing to your old host.

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