Sending emails from your company domain

  • Updated

Who is this article for?

This article will be useful to you if are a company on PartnerStack, looking to improve your email delivery, and brand your partner emails to use your business domain.

PartnerStack requires all companies in our Marketplace to authenticate their domain with PartnerStack. Authenticating your domain allows you to safely, and securely send branded email campaigns that land in your partner’s inbox.

This guide will walk you through the process of authentication by setting the appropriate DNS records to your domain to pass strict DMARC policies.

Technical overview

Domain-based Message Authentication, Reporting and Conformance (DMARC) was created to tell email servers what to do with emails that say they are from one domain, but are actually from another. For instance, an email From that is sent from

This kind of ‘email spoofing’ is a common method used by scammers and fraudsters to impersonate your domain with ‘phishing’ attacks. Because of this, most email inboxes will now flag or outright reject emails that do not pass DMARC.

Passing DMARC policies requires emails to be protected by a Sender Policy Framework (SPF) and/or DomainKeys Identified Message (DKIM), which are established by your domain’s DNS records.

Learn more about DMARC, SPF, and DKIM

Authenticating your domain with PartnerStack

PartnerStack delivers emails through our email processing partner at Twillio SendGrid.

SendGrid provides each PartnerStack customer DNS records that allow PartnerStack to deliver emails on behalf of your domain.

Follow these steps to authenticate your domain:

1. Contact PartnerStack Support

Contact the PartnerStack support team at, including "DMARC" and your domain host (e.g. Google Domains, GoDaddy, Hover, etc) in your email.

PartnerStack support will provide you with three CNAME records to add to your domain. If your domain is managed on GoDaddy, please note their formatting requirements.

2. Add CNAME records to your DNS

Add the three CNAME records to your domain's DNS records, as given to you by Support. You may need to contact a technical resource at your company to have these records added.

Each CNAME points to securely stored, internally managed records.

3. Validate CNAME records

Let PartnerStack support know that the records have been added. Support will validate that the addition was successful, and assist you with troubleshooting if it was not.

Next steps

With the correct DNS records added, PartnerStack emails to your partners will pass DMARC and increase the deliverability of your partner campaigns.

If your emails are still landing in spam folders, there are other reasons that this could be happening:

  • The recipient has flagged your emails as spam
  • Your email content, including the message body, links, images, and headers, can all be factors that rank for spam. Consider your content carefully and consult a marketing specialist if necessary.

To see a breakdown of the potential reasons your emails are landing in spam we recommend trying a free email tester.

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