To achieve DMARC alignment with ESPs (email service providers), you will need to make sure that your ESP is properly configured. Here are some general steps that you can follow to achieve DMARC alignment with your ESP: Set up SPF and DKIM for your domain. This typically involves adding DNS records to your domain's DNS settings and then verifying that the records are correct. Contact your ESP and let them know that you want to set up DMARC alignment for your domain. They may have specific instructions for how to do this, so be sure to follow their guidance. Configure your ESP to use the correct "From:" address in your messages. This should be the same address that you used when setting up SPF and DKIM for your domain. Observe DMARC aggregate reports to confirm the alignment is passing as expected Overall, achieving DMARC alignment with your ESP requires careful planning and coordination. By following the steps above, you can help to ensure that your messages are consistently passing DMARC evaluation and that your domain is protected from unauthorized use. EasyDMARC's "Email Vendor Identification" feature contains over 1,400 email sources. Your email vendors are automatically identified so that you can get user guides on how to configure sending sources with SPF & DKIM to achieve DMARC alignment.