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Mailbox providers decide where your email lands mostly by asking two questions: who is this from? and can they prove it? This page covers both.
  • Settings → Sender Information sets the from name, from address, reply-to and the postal address printed in your footer.
  • Settings → Domain Authentication publishes the DNS records (DKIM, SPF, DMARC) that prove the mail is really yours.
Only owners and administrators can change these.

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Sender Information

The page has two parts.

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Sender Profiles

A sender profile is a named identity: Profile Label (for example “Marketing” or “Support”), From Name, From Email and an optional Reply-to Email. One profile is the Default, and campaigns that don’t pick a profile use it.
1

Open Sender Information

Go to Settings → Sender Information and click Add Profile (or Create First Profile).
2

Fill in the identity

Enter the label and from name. For From Email, type the inbox name (the part before @) and pick the domain from the list.
3

Save

Click Create Profile. Use Set as default on a profile to make it the default.
The domain list only offers domains your workspace has verified, either under Domain Authentication or at one of your connected email providers. If the list is empty, you’ll see “No verified sending domains yet”. Verify a domain first (below), then come back.
If a connected provider can’t be asked for its sender list (for example, an API key that’s only allowed to send), the page says the list may be incomplete. Verify the domain under Domain Authentication instead. Deleting a profile is permanent. Campaigns that used it fall back to the default profile.

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Company and postal address

Below the profiles, enter your Company Name, Street Address, City, State / Region, Zip / Postal Code, Country and Phone, then click Save Sender Info. Anti-spam laws (CAN-SPAM, GDPR) require a physical postal address in marketing email, and the compliance footer prints what you enter here.
A missing address doesn’t block sending. The footer simply leaves it out. The Getting started checklist doesn’t count the sender step as done until street, city and country are set.

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Domain Authentication

1

Add the domain

Go to Settings → Domain Authentication and click Add Domain. Enter just the domain, such as example.com, without https:// or a trailing slash.
2

Publish the DNS records

Expand the domain to see its records. Each has a copy button. Add them at your DNS provider (Cloudflare, Route 53, GoDaddy and so on) exactly as shown.
3

Verify

Click Verify. Each record shows Found and matches or Not found or does not match. When every record passes, the domain shows Verified.
DNS changes can take up to 72 hours to propagate. If verification fails right after you publish the records, wait and click Verify again.

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Which records you’ll see

The records depend on how the workspace delivers mail when you add the domain. Platform sending (Amazon SES): In this mode, the page checks the domain’s status automatically every 30 seconds while it’s pending, and shows SES Status. Other sending: a single DKIM Record (TXT, selector ic1), an SPF Record at the root of the domain, and a DMARC Record.
Already have an SPF record? A domain can only have one SPF TXT record. Don’t add a second one. Merge the include: entries shown here into your existing record.

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The DMARC record

The DMARC record we generate looks like this:
  • p=none is a safe starting point. It monitors and doesn’t reject anything. Tighten it to quarantine or reject yourself once you’ve seen your alignment data.
  • The rua= address is ours, and it’s unique to this domain. Receivers send their daily aggregate reports there, and those reports fill in the DMARC alignment column on the Deliverability page. You don’t need to change your MX records or mail hosting. See DMARC reports.
Paste the value exactly as shown. If you already publish a DMARC record, you can keep your own rua mailbox and add ours, separated by a comma.

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Sending through your own provider

If you send through a connected provider such as Postmark, Mailgun, SendGrid, Resend or your own SES account, that provider must also have verified your domain, in its own dashboard. Creating a sender profile here doesn’t verify anything with your provider. See Email sending providers.

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Troubleshooting

Check that you added each record at the exact Name shown. Some DNS providers append your domain automatically, so _dmarc.example.com becomes _dmarc.example.com.example.com. If yours does, enter only the part before your domain. Then wait for propagation and click Verify again.
The Deliverability page re-checks DNS and flags DNS drift when published records stop matching. Campaign sends from a drifted domain are blocked until it’s fixed. See Deliverability and warm-up.
A profile on a lapsed domain stays in the list but can’t be saved again until the domain is verified.