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DNSConfig

Microsoft 365

Connect your domain to Microsoft 365 (Exchange Online) for Outlook email, including Autodiscover so apps set themselves up automatically.

About 15 minutesMicrosoft 365 documentation

1

Tell us about your setup

We fill in your details so you can copy each value exactly.

Your details

In the Microsoft 365 admin center, go to Settings → Domains → Add domain. Copy the TXT value, which starts with “MS=”.

Shown in the Microsoft 365 admin center. We’ve pre-filled the usual format; change it if yours is different.

Leave empty to use yourdomain-com.mail.protection.outlook.com

The part before .onmicrosoft.com in your initial Microsoft 365 address.

Daily reports about email sent using your domain go here. Any mailbox you read works.

Leave empty to use [email protected]

We’ll check your work

Enter your domain above. After adding the records, click “Check my records” and we’ll look them up live and point out any mistakes.

2

Add these records where your DNS is hosted

Pick your provider to see exactly what to type in each .
How to add records in Other provider
  1. Log in where you manage your domain’s DNS (see “DNS hosted at” above if we detected it).
  2. Find the DNS, Zone editor or “Advanced DNS” page.
  3. Add each record below. In the name field, type only what’s shown — most providers add your domain automatically.
  4. Save, then come back here and check again.
  • 💡 If your provider asks for a full name, add your domain after the name shown, followed by a dot.
Other provider help article ↗
MX

Delivers email sent to your domain to Outlook. Remove MX records from your old email provider.

Name / Host
@
Priority
0
Value / Points to
yourdomain-com.mail.protection.outlook.com
CNAME

Lets Outlook and phone mail apps find your settings automatically.

Name / Host
autodiscover
Value / Points to
autodiscover.outlook.com
TXT

Allows Microsoft to send email as your domain. If you already have an SPF record, add Microsoft to it.

Name / Host
@
Value / Points to
v=spf1 include:spf.protection.outlook.com -all
TXT

Tells other mail servers what to do with fake email using your domain. Start with p=none to collect reports.

Recommended
Name / Host
_dmarc
Value / Points to
v=DMARC1; p=none; rua=mailto:[email protected]

Some optional records are hidden until you fill in the matching field above.

3

Check your setup

Changes usually show up within a few minutes. Click “Check again” or turn on “Keep checking” and leave this page open — we’ll tell you when everything is in place.
  • Newer Microsoft 365 tenants may show an MX ending in “.mx.microsoft” instead — both are accepted here.