How do I validate my SPF setup in Marketo?

Summary

Validating your SPF setup in Marketo involves a multi-faceted approach, combining technical verification with practical testing. Experts and documentation consistently emphasize the importance of ensuring your SPF record includes Marketo's sending IPs, which can be obtained from Marketo support, and that the SPF setup aligns with the From header. Online tools like MXToolbox, DMARC Analyzer, and SPF record lookup tools, as well as command-line tools like `dig`, are recommended for checking the syntax, content, and validity of the SPF record. Common errors to avoid include exceeding the 10 DNS lookup limit, having multiple SPF records, and incorrect syntax. The SPF record should start with `v=spf1`, end with a qualifier (e.g., `-all`, `~all`), and be published as a TXT record in your DNS settings. After publishing, allow up to 48 hours for DNS changes to propagate, and send test emails to various email providers to examine headers for SPF pass/fail status. Properly validating ensures email deliverability and prevents spoofing, requiring regular checks, especially after infrastructure changes, and careful attention to authorized sending sources and correct syntax.

Key findings

  • Inclusion of Marketo IPs: SPF record must include Marketo's sending IPs.
  • Tool Utilization: Online tools (MXToolbox, DMARC Analyzer) and command-line tools (`dig`) are crucial for verification.
  • Record Syntax: SPF records must start with `v=spf1` and end with a qualifier.
  • TXT Record Type: SPF record must be published as a TXT record, not an obsolete SPF record.
  • DNS Propagation: Allow 48 hours for DNS changes to propagate before testing.
  • Testing Methods: Send test emails and examine email headers to verify SPF status.
  • Lookup Limit: Ensure SPF queries do not exceed the 10 DNS lookup limit.
  • Multiple Records: Avoid having multiple SPF records, as this is invalid.

Key considerations

  • Regular Checks: Perform regular checks, especially after making changes to your sending infrastructure.
  • Deliverability Impact: Proper SPF validation is vital for email deliverability and preventing spoofing.
  • Authorized Sources: Ensure the SPF record includes all authorized sending sources.
  • Syntax Accuracy: Maintain correct SPF record syntax to avoid authentication failures.
  • From Header Alignment: Validate that the SPF setup aligns with the From header for enhanced security.

What email marketers say
8Marketer opinions

Validating your SPF setup in Marketo involves several important steps and considerations. First, use online SPF record checker tools like MXToolbox or DMARC Analyzer or the `dig` command to verify the SPF record's syntax and content, ensuring it includes all necessary IPs for your email sending domains. Common errors to check for include exceeding the 10 DNS lookup limit and having multiple SPF records. Publishing your SPF record as a TXT record in your domain's DNS settings is crucial. It's also advised to send test emails to various email providers and examine the email headers to check if SPF passed. Allow up to 48 hours for DNS changes to propagate before testing, and regularly check the setup, particularly after changes to your sending infrastructure. Properly validating the SPF setup is crucial for email deliverability and preventing spoofing.

Key opinions

  • Validation Tools: Online SPF record checkers (e.g., MXToolbox, DMARC Analyzer) and command-line tools (e.g., `dig`) can verify SPF record syntax and content.
  • Record Type: SPF records must be published as TXT records in DNS settings.
  • Test Emails: Sending test emails to various providers and examining headers confirms if SPF passes.
  • Propagation Delay: Allow up to 48 hours for DNS changes to propagate before testing.
  • Common Errors: Common errors include exceeding the 10 DNS lookup limit and having multiple SPF records.

Key considerations

  • Regular Checks: Regularly check the SPF setup, especially after changes to sending infrastructure.
  • Deliverability Impact: Proper SPF validation is crucial for email deliverability and preventing spoofing.
  • IP Inclusion: Ensure the SPF record includes all necessary IPs for your email sending domains.
  • TXT Record: Always publish the SPF record as a TXT record rather than an obsolete SPF record type.
Marketer view

Email marketer from MailerCheck Blog advises to send test emails to different email providers (Gmail, Yahoo, etc.) after setting up SPF in Marketo. Then, examine the email headers to see if SPF passed. You can typically view email headers by checking 'show original' or 'view source' options in your email client.

July 2024 - MailerCheck Blog
Marketer view

Email marketer from StackOverflow user TechGuru shares the advice of using `dig` command-line tool (if on Linux/macOS) to query the DNS records directly. By running `dig txt yourdomain.com`, you can view the SPF record and confirm its syntax and content. Ensure the record includes all sending sources used by Marketo.

December 2024 - StackOverflow
Marketer view

Email marketer from Twitter user @EmailSecurityPro tweets that common SPF issues include having multiple SPF records, incorrect syntax, and failing to include all third-party senders. Always use an SPF checker to ensure everything is configured correctly.

October 2024 - Twitter
Marketer view

Email marketer from Gmass advises to always publish your SPF record as a TXT record in your domain's DNS settings and not as an SPF record (which is obsolete). Ensure that your hosting provider supports TXT records and that they are properly configured.

December 2024 - Gmass
Marketer view

Email marketer from EmailOnAcid explains that properly validating SPF is crucial for ensuring email deliverability and preventing spoofing. Incorrect or missing SPF records can lead to emails being marked as spam. Regular checks are recommended, especially after making changes to your sending infrastructure.

July 2024 - EmailOnAcid
Marketer view

Email marketer from LinkedIn group suggests that after publishing your SPF record, allow up to 48 hours for the DNS changes to propagate fully before testing. Use tools like Google Admin Toolbox Dig to confirm the updated record is visible globally.

July 2021 - LinkedIn
Marketer view

Email marketer from Reddit user r/emailmarketing suggests using online SPF record checker tools like MXToolbox or DMARC Analyzer after setting up your SPF record in Marketo. These tools can quickly verify if your SPF record is valid and includes all necessary IPs for your email sending domains.

March 2021 - Reddit
Marketer view

Email marketer from EmailGeek Forum recommends checking for common errors like exceeding the 10 DNS lookup limit in your SPF record, which can cause SPF failures. To avoid this, try to consolidate your includes or use mechanisms like `ip4` and `ip6` where possible to explicitly list IPs.

April 2022 - EmailGeek Forum

What the experts say
5Expert opinions

Validating your SPF setup in Marketo involves confirming that the SPF record is valid and aligned with the From header, particularly focusing on the return path (envelope.eversource.com). Experts emphasize checking the SPF record to ensure it includes all legitimate sending sources and doesn't exceed the DNS lookup limit. They also highlight that the SPF record should start with `v=spf1` and end with a qualifier like `-all`, `~all`, or `?all`, and that the mechanisms within the record define authorized sending servers. Tools like DNS record viewers can be used to verify the content and validity of the SPF record.

Key opinions

  • Return Path Focus: SPF validation should prioritize the return path (e.g., envelope.eversource.com) of the email.
  • Record Format: SPF records must start with `v=spf1` and end with a qualifier (e.g., `-all`, `~all`).
  • Authorized Sources: The SPF record must include all legitimate sending sources.
  • Lookup Limit: The SPF record should not exceed the DNS lookup limit.
  • Validation Tools: DNS record viewers can be used to verify the SPF record's content and validity.

Key considerations

  • Alignment: Ensure the SPF setup is aligned with the From header.
  • Marketo Inclusion: The SPF record should properly include Marketo's sending infrastructure.
  • Valid Syntax: Ensure the SPF record's syntax is correct to avoid authentication failures.
Expert view

Expert from Word to the Wise recommends using tools like his own DNS record viewer or similar online resources to check the validity and content of your SPF records. He emphasizes the importance of ensuring the record includes all legitimate sending sources and doesn't exceed the DNS lookup limit.

January 2022 - Word to the Wise
Expert view

Expert from Email Geeks confirms that the test email is set up perfectly and to ignore any comments from Marketo, clarifying that the email setup is correct.

March 2021 - Email Geeks
Expert view

Expert from Email Geeks explains that the SPF setup is valid and aligned with the From header, emphasizing that it doesn't get better than that. Furthermore stating that for SPF it’s using envelope.eversource.com in the return path. That’s valid for the IP address it’s being sent from which includes the marketo customer SPF record.

August 2022 - Email Geeks
Expert view

Experts from Email Geeks re-iterates that the return path is envelope.eversource.com, which is including Marketo and nothing else. Steve adds that SPF is keyed off the _return path_ of the email and not the domain in the From: header.

February 2022 - Email Geeks
Expert view

Expert from Spamresource explains that the SPF record should start with `v=spf1` and end with a qualifier like `-all`, `~all`, or `?all`. The mechanisms within the record define which servers are authorized to send mail. Check your record by nslookup or similar dns record viewer.

July 2024 - Spamresource

What the documentation says
6Technical articles

Validating your SPF setup in Marketo involves several key steps, including ensuring your SPF record includes Marketo's sending IPs (obtainable from Marketo support) and using DNS lookup tools to confirm the record is published correctly. Online tools such as MXToolbox or SPF Record Check can verify if your SPF record is valid and properly configured. Testing is crucial after setup, with tools like SPF record lookup tools checking for syntax errors, multiple SPF records (which are invalid), and inclusion of all sending sources. Validation also includes verifying syntax, ensuring the DNS lookup limit is not exceeded (maximum 10 lookups), and confirming authorized sending sources. SPF records must start with `v=spf1` and include mechanisms like `include`, `a`, `mx`, `ip4`, and `ip6` to specify authorized sources, ending with a qualifier like `-all`, `~all`, or `+all`.

Key findings

  • Marketo IPs: Ensure your SPF record includes Marketo's sending IPs, obtainable from their support.
  • Online Tools: Tools like MXToolbox, SPF Record Check, and SPF record lookup tools are effective for validation.
  • Common Errors: Check for syntax errors and multiple SPF records, which are invalid.
  • DNS Lookup Limit: SPF DNS queries must not cause more than 10 DNS lookups.
  • Record Format: SPF records must start with `v=spf1` and end with a qualifier.

Key considerations

  • Regular Testing: Test your SPF record after setup and periodically thereafter.
  • Authorized Sources: Verify all authorized sending sources are included in the SPF record.
  • Syntax Verification: Ensure the SPF record syntax is correct to avoid authentication issues.
  • Comprehensive Analysis: Consider using tools like SPF Surveyor for a comprehensive analysis of your SPF setup.
Technical article

Documentation from Adobe Marketo Documentation explains that to validate your SPF record in Marketo, you should ensure your SPF record includes Marketo's sending IPs, which you can obtain from Marketo support. After updating your DNS record, use a DNS lookup tool to confirm the SPF record is published correctly.

December 2024 - Adobe Marketo Documentation
Technical article

Documentation from dmarcian explains that validating SPF involves checking the syntax of the SPF record, ensuring it doesn't exceed the 10 DNS lookup limit, and verifying that all authorized sending sources (including Marketo's IPs) are correctly included. They also advise using their SPF Surveyor tool for comprehensive analysis.

October 2023 - dmarcian
Technical article

Documentation from Mailjet explains that you can use online tools such as MXToolbox or SPF Record Check to check if your SPF record is valid and correctly configured. These tools allow you to enter your domain and then provide information on the record and any potential errors.

November 2022 - Mailjet
Technical article

Documentation from Microsoft explains that SPF records must start with `v=spf1` and should include mechanisms like `include`, `a`, `mx`, `ip4`, and `ip6` to specify authorized sending sources. The record should end with a qualifier such as `-all` (hard fail), `~all` (soft fail), or `+all` (allow all, not recommended).

March 2021 - Microsoft Documentation
Technical article

Documentation from RFC specification explains that any SPF DNS queries MUST NOT cause more than 10 DNS lookups. This is important to validating an SPF configuration is correct.

November 2022 - ietf.org
Technical article

Documentation from EasyDMARC explains that after setting up SPF, it's crucial to test it to ensure it's working correctly. They advise using their own SPF record lookup tool to check for syntax errors, multiple SPF records (which is invalid), and ensure all sending sources are included.

September 2021 - EasyDMARC