How do I fix DMARC issues with Mailchimp and Woodpecker while using O365?
Summary
What email marketers say8Marketer opinions
Email marketer from DMARC Analyzer emphasizes the importance of regularly monitoring DMARC reports to identify and address deliverability issues, spoofing attempts, and other email security threats.
Email marketer from Email on Acid advises that after setting up SPF, DKIM, and DMARC, testing the email authentication is important to identify any issues. They suggest using email testing tools to check the authentication results.
Email marketer from Mailjet recommends SPF flattening to avoid exceeding the DNS lookup limit, which can affect DMARC compliance. This involves replacing include statements with the actual IP addresses.
Email marketer from Reddit highlights the importance of DMARC alignment with SPF or DKIM. They suggest verifying that the domain used in the 'From' address matches the domain used for DKIM signing or the SPF authorized domain.
Email marketer from GMass shares that DMARC policies define how email receivers should handle emails that fail DMARC checks (none, quarantine, reject). Selecting a stricter policy (quarantine or reject) can protect your domain's reputation.
Email marketer from Postmark lists common DMARC errors such as incorrect SPF syntax, DKIM signing issues, and DMARC policy misconfigurations. Troubleshooting these errors is essential for successful DMARC implementation.
Email marketer from StackOverflow suggests checking the organizational DMARC policies that may override individual settings, and ensuring the 'From' header is correctly aligned with DKIM or SPF authentication domains.
Email marketer from EasyDMARC explains that implementing DMARC requires configuring SPF and DKIM records correctly, and then creating a DMARC policy. They suggest using a DMARC monitoring tool to observe and analyze DMARC reports for better insight.
What the experts say5Expert opinions
Expert from Email Geeks points out that the SPF record is incorrect because Mailchimp uses its own domain in SPF, which is important for DMARC alignment via custom DKIM.
Expert from Email Geeks confirms that the include:<http://spf.protection.outlook.com|spf.protection.outlook.com> is necessary because mail is being sent from Outlook through Woodpecker.
Expert from Word to the Wise emphasizes the importance of monitoring your sending reputation and domain reputation when dealing with DMARC issues, as a poor reputation can significantly impact deliverability even with correct technical configurations.
Expert from Spamresource.com explains that DMARC can be implemented on subdomains to test configurations and that it can be useful to test a DMARC setup by first applying it to a subdomain before implementing it on the main domain.
Expert from Email Geeks suggests setting up custom DKIM for Mailchimp to fix DMARC issues.
What the documentation says4Technical articles
Documentation from Cloudflare explains how to properly configure DNS records, which is critical for SPF, DKIM, and DMARC. Ensure the records are correctly entered and propagated across the DNS.
Documentation from Woodpecker shares that properly setting up DKIM is essential for Woodpecker to authenticate emails and improve deliverability. Follow their DKIM setup guide to create and add the DKIM record to your DNS.
Documentation from Microsoft explains how to create DKIM records for your custom domain in Office 365 (now Microsoft 365) through the Microsoft 365 Defender portal or using PowerShell.
Documentation from Mailchimp explains that setting up DMARC involves creating a DMARC record in your domain's DNS settings and points to their instructions.