Guide to Adding TXT, MX, and CNAME Records in Azure DNS

Prerequisites

• An Azure account with a subscription.
• A DNS zone created for your domain.

Steps to Add Records

Log in to Azure Portal

• Visit https://portal.azure.com/.

Navigate to DNS Zones

• Search for “DNS Zones” in the top search bar and select your domain’s DNS zone (e.g., example.com).

Add Record Set:

• Click “+ Record set”.

Adding a TXT Record

• Name: Enter the subdomain (e.g., sub) or leave blank for the root domain.
• Type: Select TXT.
• TTL: Set to 3600 seconds (or customize).
• Value: Enter the text value (e.g., v=spf1 include:_spf.google.com ~all — no quotes needed here).
• Click “OK”.

Adding an MX Record

• Name: Leave blank for the root or enter a subdomain (e.g., mail).
• Type: Select MX.
• TTL: Set to 3600 seconds.
• Preference: Enter the priority (e.g., 10).
• Mail Exchange: Enter the server (e.g., mail.example.com.).

Adding a CNAME Record

• Name: Enter the subdomain (e.g., www).
• Type: Select CNAME.
• TTL: Set to 3600 seconds.
• Alias: Enter the target domain (e.g., example.com. or anotherdomain.com.).
• Click “OK”.

Reference

Video: How to Add DNS Records in Azure?
Docs: Link

Notes

• Propagation Time: DNS changes may take anywhere from a few minutes to 48 hours to propagate across the internet, depending on TTL settings and DNS provider.
• Verification: Use tools like dig (e.g., dig example.com TXT) or nslookup to verify records after adding them.
• Trailing Dots: AWS and GCP often require trailing dots for FQDNs (e.g., example.com.), while Azure and GoDaddy typically do not.

This guide ensures you can configure DNS records efficiently. For specific use cases (e.g., email setup, domain verification), refer to the service provider’s documentation.