> For the complete documentation index, see [llms.txt](https://learn.withessential.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.withessential.com/administration/settings/verify-your-whole-sending-domain-with-dkim.md). # Verify your whole sending domain with DKIM Essential can sign your outgoing email with your own domain (DKIM), the recommended setup because every message is verified as coming from you - important as Gmail and Yahoo tighten their sending requirements. (The simpler alternative, "Verify a single address," just emails you a confirmation link to click.) To set up the domain, choose "Verify your domain" and Essential generates a small set of DNS records for you. Add them to your domain at your DNS host (GoDaddy, Cloudflare, and so on), then come back and click "Verify records". DNS changes can take anywhere from a few minutes to a few hours to propagate, so if the records aren't detected yet, use "Refresh" to re-check and try "Verify records" again. Each record's status shows Pending until it's confirmed; once DKIM and the return path both verify, the card shows "Domain verified". Email delivery is handled securely by Postmark. One thing to know: once your domain is verified it locks in. While it's active you can't switch back to single-address verification from the card. To change methods, click Disconnect first, which falls back to Essential's default sending address until you set up verification again. > **Where to find it:** Settings > Business Profile, the "Sending email" card. (You'll need the business-profile setup permission to see it. If the card is missing but you need to manage sending email, contact your business's administrator to review your role.) ## Related guides * [Verify the email address Essential sends from](/administration/settings/verify-the-email-address-essential-sends-from.md) * [Configure the automated outreach sequence](/administration/settings/configure-the-automated-outreach-sequence.md) * [Set up your business profile: name, logo, brand color, contact, address](/administration/settings/set-up-your-business-profile-name-logo-brand-color-contact-address.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://learn.withessential.com/administration/settings/verify-your-whole-sending-domain-with-dkim.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.