SPF Setup for Amazon SES Sending Domains
December 13, 2025 • InboxGreenEmail Team
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SPF Setup for Amazon SES Sending Domains
When you are sending emails through Amazon Simple Email Service (SES), having a proper Sender Policy Framework (SPF) record is crucial. If you skip this step, you risk landing in spam folders, experiencing bounced emails, or facing warnings in Gmail. These issues can severely damage your domain's reputation and hinder your email marketing efforts. It becomes urgent when you notice a drop in open rates or receive complaints from users about missing emails. In this article, we will walk through the SPF setup process specifically for Amazon SES, ensuring your emails reach the inbox.
At a glance
- This problem affects SaaS founders, marketers, and technical email managers.
- This article will help you set up SPF for Amazon SES sending domains.
- By following these steps, you will improve inbox placement and protect your domain reputation.
When this problem shows up in real life
Imagine you are running a marketing campaign, and you notice that your emails are not being delivered as expected. You check your logs and find the following error message:
554 Message rejected: Email address is not verified.This indicates that your sending domain is not properly authenticated. Another common scenario is when you see the following in your Gmail headers:
Authentication-Results: mx.google.com; spf=fail (google.com: domain of example.com does not designate 203.0.113.0 as permitted sender) smtp.mailfrom=example.comThese issues can lead to high bounce rates and low deliverability, making it essential to address SPF setup promptly.
Step by step: SPF setup for Amazon SES sending domains
- Access your DNS management console.
Log in to your domain registrar or hosting provider where your DNS records are managed.
- Create or edit your SPF record.
If you do not have an SPF record, you will need to create a new TXT record. If one exists, you will need to edit it.
- For a new SPF record, use the following format:
v=spf1 include:amazonses.com -all - If you have other services sending emails from your domain, you might need to include them as well. For example:
- Save your changes.
Make sure to save the updated DNS records. Changes may take some time to propagate, depending on your DNS settings.
- Verify your SPF record.
Use the InboxGreen checker to verify that your SPF record is correctly set up. This tool will help you identify any issues.
v=spf1 include:amazonses.com include:other-service.com -allCommon mistakes
- Missing SPF record.
What you see: Emails bounce back with a message indicating no SPF record found.
Why it is a problem: Without an SPF record, receiving mail servers cannot verify your sending domain.
What to change: Create a new SPF TXT record as outlined above.
- Incorrect SPF syntax.
What you see: Authentication failures in email headers.
Why it is a problem: Errors in syntax prevent proper validation of your SPF record.
What to change: Double-check your SPF record for typos and ensure it follows the correct format.
- Not including all sending services.
What you see: Emails from other services fail to authenticate.
Why it is a problem: If you are using multiple services, they need to be included in your SPF record.
What to change: Update your SPF record to include all relevant services.
- Using multiple SPF records.
What you see: SPF validation errors.
Why it is a problem: Only one SPF record is allowed per domain.
What to change: Combine all necessary entries into a single SPF record.
Troubleshooting when it still fails
If your SPF record looks correct but you still experience issues, check the following:
- Authentication-Results headers show SPF fail.
Likely cause: Your IP address is not included in the SPF record.
What to try next: Ensure your sending IP is listed in the SPF record.
- SPF record not propagating.
Likely cause: DNS changes can take time to propagate.
What to try next: Wait for a few hours and recheck using the InboxGreen checker.
- SPF record too long.
Likely cause: The SPF record exceeds the DNS character limit.
What to try next: Simplify your SPF record or use subdomains to manage it.
- Conflicting DNS records.
Likely cause: Other DNS records may conflict with your SPF setup.
What to try next: Review all DNS records for potential conflicts.
Related checks you should run
- Check SPF, DKIM, and DMARC alignment.
- Verify DNS TTL settings and propagation delays.
- Monitor your domain reputation and check for bounces or spam reports.
- Evaluate your email list quality and engagement patterns.
FAQ
Why is SPF still failing on Amazon SES after I added the record?
SPF failures can occur if your sending IP address is not included in the SPF record. Make sure you have the correct record format and that all sending sources are included.
How long do DNS changes take to apply on Amazon SES?
DNS changes can take anywhere from a few minutes to 48 hours to propagate fully. It often depends on your DNS provider's TTL settings.
Can I use more than one SPF include with this setup?
Yes, you can include multiple services in your SPF record. Just ensure you do not exceed the maximum DNS lookups allowed by SPF, which is 10.
What should I do if my SPF record is correct but emails still land in spam?
Check other factors such as DKIM and DMARC settings, domain reputation, and email content. Use the InboxGreen checker for a complete analysis.
How can I verify my SPF record after making changes?
You can use the InboxGreen checker to verify the accuracy of your SPF record and ensure it is correctly set up.
What if I have multiple domains using Amazon SES?
You will need to create separate SPF records for each domain. Ensure that each record includes the necessary entries for Amazon SES.
Is it necessary to set up DKIM and DMARC if I have SPF configured?
While SPF is important, setting up DKIM and DMARC adds additional layers of authentication and can significantly improve your email deliverability and domain reputation.
What to do next
Now that you have your SPF record set up, it is time to verify its functionality. Use the InboxGreen checker to ensure everything is working as expected. Additionally, consider setting up DKIM and DMARC for enhanced security. Explore our SPF generator and DMARC generator to streamline your setup. Take these steps to protect your domain and improve your email deliverability.
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