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  • 23 Jun 2024


Configuring DNS for better email deliverability is crucial for ensuring that your emails land in the inbox rather than the spam folder. Here is a comprehensive guide to help you configure your DNS settings for optimal email deliverability.

How to Configure DNS for Better Email Deliverability

Ensuring your emails reach the intended recipients’ inboxes is essential for any business relying on email marketing. Proper DNS configuration plays a critical role in improving email deliverability. Here’s a comprehensive guide to setting up DNS records for optimal email deliverability, tailored for the services offered by Inbox Automation.

Key DNS Records for Email Deliverability

1. SPF (Sender Policy Framework):

  • Purpose: Prevents unauthorized senders from sending emails on behalf of your domain.
  • Configuration:
    • Step 1: Access your domain’s DNS management dashboard.
    • Step 2: Create a new TXT record.
    • Step 3: Set the value to (adjust the partially based on your email provider).
    • Step 4: Save the record and wait for DNS propagation.

2. DKIM (DomainKeys Identified Mail):

  • Purpose: It ensures the email has not been altered in transit and verifies the sender’s domain.
  • Configuration:
    • Step 1: Generate a DKIM key pair using your email service provider.
    • Step 2: Add the public key as a TXT record in your DNS.
    • Step 3: Example record name: default._domainkey.yourdomain.com.
    • Step 4: Save the record and verify the setup using your email provider’s tools.

3. DMARC (Domain-based Message Authentication, Reporting, and Conformance):

  • Purpose: Provides email authentication and reduces email spoofing.
  • Configuration:
    • Step 1: Create a new TXT record in your DNS.
    • Step 2: Set the value to v=DMARC1; p=none; rua=mailto:dmarc-reports@yourdomain.com (adjust the p policy based on your requirements).
    • Step 3: Save the record and wait for DNS propagation.

Step-by-Step Guide to Configuring DNS Records

1. Configuring SPF Records

  1. Login to Your DNS Management Console:
    • Access your domain’s DNS management dashboard provided by your hosting service.
  2. Add an SPF Record:
    • Select the option to add a new TXT record.
    • Set the name to @ or leave it blank (depending on your DNS provider).
    • Enter the SPF record value. Example: v=spf1 include:spf.protection.outlook.com -all.
  3. Save Changes:
    • Save the new TXT record and wait for DNS propagation (can take up to 48 hours).

2. Configuring DKIM Records

  1. Generate DKIM Keys:
    • Use your email provider’s tools to generate the DKIM keys.
  2. Add the DKIM Record:
    • Add a new TXT record in your DNS settings.
    • Set the name to something like default._domainkey.
    • Paste the provided DKIM public key into the TXT record value.
  3. Verify DKIM Setup:
    • Use your email service provider’s tools to verify the DKIM setup.

3. Configuring DMARC Records

  1. Create a DMARC Record:
    • Add a new TXT record in your DNS settings.
    • Set the name to _dmarc.
  2. Set the DMARC Policy:
    • Example value: v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@yourdomain.com.
    • p=none is used for monitoring, p=quarantine or p=reject for stricter policies.
  3. Monitor DMARC Reports:
    • Ensure you have an email address set up to receive DMARC reports and regularly monitor them for issues.

4. Verifying DNS Records

  1. Use Online Tools:
    • Tools like MXToolbox, DMARC Analyzer, and DNSstuff can help verify your DNS records.
  2. Check Email Headers:
    • Send test emails to check the headers for SPF, DKIM, and DMARC pass statuses.

5. Maintenance and Monitoring

  1. Regular Updates:
    • Regularly review and update your SPF, DKIM, and DMARC records as needed.
  2. Monitor Reports:
    • Continuously monitor the reports generated by DMARC to identify and resolve any issues.

By configuring these DNS records correctly, you significantly enhance your email deliverability, ensuring your emails reach the intended recipients and protecting your domain from spammers.

For more detailed guidance and personalized support, visit Inbox Automation.

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