---
title: DNS records Reloop needs
sidebarTitle: DNS records explained
description: What each Reloop DNS record does — SPF, DKIM, DMARC, MX, and tracking — and how to read them in the dashboard.
---
> For the complete documentation index, see [llms-docs.txt](/llms-docs.txt) or the site index [llms.txt](/llms.txt). Full docs corpus: [llms-full-docs.txt](/llms-full-docs.txt). Prefer markdown URLs (append `.md`) for agent consumption. Product skill: [skill.md](/skill.md).


When you add a domain, Reloop generates the exact records to publish. Always prefer the dashboard values over examples here. Your **DKIM key is unique**.

## Quick map

| Purpose | Typical type | Example host | What it does |
| --- | --- | --- | --- |
| **SPF** | TXT | `@` | Authorizes Reloop to send for your domain |
| **DKIM** | TXT | `reloop._domainkey` | Cryptographic signature so receivers trust the message |
| **DMARC** | TXT | `_dmarc` | Policy if SPF/DKIM fail (Reloop suggests a strict policy) |
| **Sending MX** | MX | `@` | Used in Reloop’s sending/return-path setup as shown in the dashboard |
| **Receiving MX** | MX | `@` or your subdomain | Routes **inbound** mail to Reloop (`inbound.reloop.sh`) when receiving is on |
| **Tracking** | CNAME | `link` | Click/open tracking (`link.yourdomain.com` → `link.reloop.sh`) |

Hosts and whether MX/tracking appear depend on your domain settings (apex vs subdomain, sending/receiving toggles).

## SPF (Sender Policy Framework)

**Type:** TXT  
**Example value:**

```
v=spf1 include:reloop.sh -all
```

SPF lists which servers may send mail as your domain. Reloop’s include is `include:reloop.sh` (hosted product).

<Warning>
You may only have **one SPF TXT** on a given host. If you already have SPF (Google, Microsoft, Mailchimp, …), **merge** Reloop’s `include:reloop.sh` into that record — do not add a second SPF. See [SPF conflicts](/docs/guides/connect-domain/troubleshoot/spf-conflicts).
</Warning>

## DKIM (DomainKeys Identified Mail)

**Type:** TXT  
**Host:** usually `reloop._domainkey` (selector `reloop`)  
**Value:** looks like:

```
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A...
```

The long `p=` string is your public key. Reloop signs outbound mail with the matching private key. If the TXT is truncated, quoted wrongly, or split incorrectly, verification fails. See [DKIM / DMARC typos](/docs/guides/connect-domain/troubleshoot/dkim-dmarc-typos).

## DMARC

**Type:** TXT  
**Host:** `_dmarc`  
**Example value:**

```
v=DMARC1; p=reject;
```

DMARC tells receivers what to do when authentication fails. Reloop’s default template uses `p=reject`. If you already have DMARC for Google/Microsoft, review carefully before overwriting — you may keep your existing policy and align later.

## MX (mail exchange)

MX records control **where inbound mail is delivered**.

- **Sending-only:** you may still see MX-related rows in Reloop; follow the dashboard. Reloop sending does not require replacing your existing inbox MX if you only send from Reloop.
- **Receiving enabled:** Reloop expects MX pointing at `inbound.reloop.sh` (priority typically `10`). That **will conflict** with another inbox already using MX on the same hostname. Use a [separate hostname](/docs/guides/connect-domain/what-is-a-domain) for Reloop receiving, or see [MX conflicts](/docs/guides/connect-domain/troubleshoot/mx-conflicts).

## Tracking CNAME

**Type:** CNAME  
**Host:** usually `link`  
**Value:** `link.reloop.sh`

Used for branded click/open tracking links (`https://link.yourdomain.com/...`).

Conflicts if `link` already points elsewhere, or if your provider disallows CNAMEs in that spot. See [Tracking CNAME issues](/docs/guides/connect-domain/troubleshoot/tracking-cname).

## How to read a Reloop dashboard row

For each row, match three things in your DNS UI:

1. **Type** (TXT / MX / CNAME)
2. **Name / Host** — some UIs want `@` for the root; others want a blank host or the bare domain
3. **Value** — paste exactly; for MX also set **Priority**

Provider-specific quirks (Cloudflare proxy, GoDaddy host field, Route 53 hosted zone) are in each [provider guide](/docs/guides/connect-domain/providers).

## Related

- [Manual setup](/docs/guides/connect-domain/manual-setup)
- [Auto-populate](/docs/guides/connect-domain/auto-populate)
- [Sending vs receiving](/docs/guides/connect-domain/sending-vs-receiving)