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How to Add MX Records to DNS for Emails
Rapyd Team avatar
Written by Rapyd Team
Updated over a week ago

Mail Exchange (MX) records are an essential part of the DNS system, responsible for directing email messages to the correct servers. Whether you're switching email providers or setting up a new domain, understanding how to manage MX records is vital. This article explains what MX records are and offers a step-by-step guide on how to add them to your DNS.

Emails are crucial for business communication, and proper email delivery hinges on correctly configured MX records. This article will illuminate the role of MX records, provide a guide to set them up, and highlight potential pitfalls and their solutions.

Introduction to MX Records

MX records, or Mail Exchange records, guide the delivery of emails to the correct mail servers based on the recipient's domain. They work within the DNS system to ensure that messages get routed to the right destination.

The Structure of an MX Record

  • Priority: Every MX record has a priority number. Lower numbers indicate higher priority. In cases where multiple MX records exist, emails will first try the highest priority (lowest number) server.

  • Mail Server: This is the domain name of the email server that will receive the emails. It often looks like "" or ""

Steps to Add MX Records

  • Log in to Your DNS Provider: This could be a domain registrar like GoDaddy or Namecheap, or a DNS management platform like Cloudflare.

  • Navigate to DNS Management: Find the section where you can edit or manage DNS records.

  • Locate MX Records Section: Find the area dedicated to MX records.

  • Add New MX Record: Input the priority and mail server as provided by your email service provider.

  • Repeat for Multiple MX Records: If your email provider offers backup mail servers, add them with the appropriate priority.

  • Save Changes: Ensure that you save any adjustments to your DNS settings.

Common Issues and Troubleshooting

  • Propagation Delay: Changes to MX records can take anywhere from a few minutes to 48 hours to propagate worldwide.

  • Incorrect Priority: Ensure that the priority numbers are correctly set, as misconfigurations can result in email delivery failures.

  • Old MX Records: Always remove any outdated MX records to prevent conflicts.

Importance of Proper MX Record Configuration

  • Incorrect MX records can lead to undelivered emails, which can disrupt business operations.

  • Properly set MX records also ensure that your emails are directed to secure and trusted servers, reducing the risk of email-based attacks.


While the world of DNS might seem complex, managing MX records is a straightforward task with profound implications. Ensuring that your MX records are correctly configured is essential for reliable email communication. With this guide, you can confidently manage your MX records and guarantee your emails find their intended recipients.

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