---
title: "Add a DKIM record at Squarespace, plus SPF and DMARC"
date: "2026-11-06"
author: RocketCart
url: "https://getrocketcart.com/docs/sending-domain/squarespace/"
type: docs
---

To send RocketCart emails from a domain registered with Squarespace (including domains that moved there from Google Domains), add three TXT records under **Custom Records** in the domain’s DNS settings.

## The records RocketCart needs

| Record | Type | Name | Value |
| --- | --- | --- | --- |
| SPF | TXT | `@` | `v=spf1 include:mailgun.org ~all` |
| DKIM | TXT | `<selector>._domainkey` | `v=DKIM1; k=rsa; p=<your public key>` |
| DMARC | TXT | `_dmarc` | `v=DMARC1; p=none` |

- Copy every value from the **DNS records** panel in RocketCart (**Settings > Email Settings**). Click **Copy value** on each tab. `<selector>` and `<your public key>` are unique to your store. If the app shows the literal word `<selector>` in Host/Name, your selector is your store name as RocketCart saved it on install: lowercase letters and numbers, hyphens between words, for example `my-store` for “My Store”.
- Squarespace adds your domain to the name. Type `@` for the domain itself, and only the prefix for the others.

## How do I add a TXT record in Squarespace?

1. Open your Squarespace domains dashboard and click the domain.
2. Click **DNS**, then **DNS Settings**.
3. Scroll down to **Custom Records** and click **Add record**.
4. Enter your password, or confirm with two-factor authentication, and click **Continue**.
5. In **Type**, choose **TXT**.
6. In **Name**, enter the name from the table, for example `_dmarc`.
7. In **Text**, paste the value you copied from RocketCart.
8. Click **Save**.
9. Repeat for the other two records.

Warning

Records only work where your domain’s DNS is managed. If your domain’s nameservers point to another company (for example your web host), add the records there instead. If your domain is connected to Squarespace with DNS Connect, its DNS is still managed at your other provider.

## What if I already have an SPF record?

A domain can only have one SPF record. With two, both fail. If you already have a TXT record that starts with `v=spf1`, edit that one instead of adding a new one. Put `include:mailgun.org` **before** the `~all` or `-all` at the end:

|  | Value |
| --- | --- |
| Your record now | `v=spf1 include:_spf.google.com ~all` |
| After your edit | `v=spf1 include:_spf.google.com include:mailgun.org ~all` |

Keep every service your record already lists. Only add `include:mailgun.org`.

Mail servers stop reading an SPF record at `~all` or `-all`, so an include placed after it is ignored. If the value RocketCart suggests ends with `include:mailgun.org`, move that part in front of `~all` when you paste it.

## What if I already have a DMARC record?

Keep it and skip the DMARC record. A domain should have only one DMARC record on `_dmarc`, and RocketCart accepts any valid one.

## Verify the records in RocketCart

1. In RocketCart, go to **Settings > Email Settings**.
2. In the **DNS records** panel, click **Verify DNS**.
3. When all three tabs show **Verified** (**Status: 3/3 DNS records verified.**), turn on **Enable custom domain**.

Squarespace says changes to records can take 24 to 48 hours, and new custom records start with a 4-hour TTL. RocketCart only checks when you click **Verify DNS**, so click it again later if a record still shows **Missing**. The full flow is in [Set up a custom sending domain](/docs/sending-domain/set-up-sending-domain/). If a record won’t verify, see [Sending domain not verifying](/docs/troubleshooting/sending-domain-not-verifying/).