Set up DNS for Microsoft 365
To use Microsoft 365 with a custom domain, you need to add specific DNS records to your domain's DNS configuration. This allows Microsoft 365 to send and receive emails on behalf of your domain.
mail2dns is the fastest way to create the DNS records. You can use mail2dns with the supported DNS providers listed below to create the necessary records in one command.
CLI Usage
mail2dns setup <your-domain> ms365 <dns-provider>Supported DNS Providers
Follow the relevant setup guide for using mail2dns to set up your DNS configuration for Microsoft 365
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DNS records required for Microsoft 365
Microsoft 365 requires the following DNS records to send and receive email from your domain. These are created automatically by the mail2dns setup command:
TXT Record
@ → {VERIFY_TXT}
MX Record
@ → {DOMAIN_DASHES}.mail.protection.outlook.com
TXT Record
@ → v=spf1 include:spf.protection.outlook.com -all
TXT Record
_dmarc → v=DMARC1; p=none;
CNAME Record
autodiscover → autodiscover.outlook.com
CNAME Record
selector1._domainkey → {DKIM_SELECTOR1_TARGET}
CNAME Record
selector2._domainkey → {DKIM_SELECTOR2_TARGET}