> ## Documentation Index
> Fetch the complete documentation index at: https://resend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Vercel
> Verify your domain on Vercel with Resend.
> [!NOTE]
>
> This guide helps you verify your domain on Vercel with Resend. We also have
> [an official integration for
> Vercel](https://resend.com/blog/vercel-integration) that helps you set up your
> API keys on Vercel projects so you can start sending emails with Resend. [View
> the integration here](https://vercel.com/resend/~/integrations/resend).
## Vercel Marketplace integration
If you installed Resend through the [Vercel Marketplace](https://vercel.com/marketplace/resend), Vercel manages the lifecycle of your Resend team, API keys, and domains. These resources cannot be deleted from the Resend dashboard, as they must uninstalled from Vercel to remove them.
## Add Domain to Resend
First, log in to your [Resend Account](https://resend.com/login) and [add a domain](https://resend.com/domains).
> [!TIP]
>
> It is [best practice to use a
> subdomain](/docs/knowledge-base/is-it-better-to-send-emails-from-a-subdomain-or-the-root-domain)
> (updates.example.com) instead of the root domain (example.com). Using a
> subdomain allows for proper reputation segmentation based on topics or purpose
> (e.g. marketing) and is especially important if receiving emails with Resend.
## Automatic Setup (Recommended)
The fastest way to verify your domain on Vercel is using the **Auto Configure** button on Resend. This uses Domain Connect to automatically configure your DNS records.
1. Go to your [Domains page](https://resend.com/domains) in Resend.
2. (Optional) If you want to receive emails, select `Manual setup` and toggle the "Receiving" switch on the domain details page. ([Learn more below](#receiving-emails))
3. Click **Auto Configure**.
4. Authorize Resend to access your Vercel DNS settings.
5. The DNS records will be added automatically.
That's it. Your domain will be verified within a few minutes.
## Manual Setup
If you prefer to add DNS records manually, follow these steps.
### Log in to Vercel
Log in to your [Vercel account](https://vercel.com/login) and select the `Domains` tab.
## Add MX SPF Record
Copy and paste the values in Resend to Vercel.
1. Type `send` for the `Name` of the record in Vercel.
2. Expand the `Type` dropdown and select `MX`.
3. Copy the record value from Resend into the `Value` field in Vercel.
4. Add `10` for the `Priority`.
5. Select `Add`.
> [!NOTE]
>
> Omit your domain from the record values in Resend when you paste. Instead of
> `send.example.com`, paste only `send` (or `send.subdomain` if you're using a
> subdomain).
Below is a mapping of the record fields from Resend to Vercel:
| Vercel | Resend | Example Value |
| - | - | - |
| Type | Type | `MX Record` |
| Name | Name | `send` |
| Value | Content | `feedback-smtp.us-east-1.amazonses.com` |
| TTL | TTL | `Use Vercel default (60)` |
| Priority | Priority | `10` |
> [!NOTE]
>
> Do not use the same priority for multiple records. If Priority `10` is already
> in use on another record, try a higher value `20` or `30`.
## Add TXT SPF Record
In the same section, add another record in Vercel.
1. Type `send` for the `Name` of the record.
2. Expand the `Type` dropdown and select `TXT`.
3. Copy the `TXT` record value from Resend into the `Value` field in Vercel.
4. Use the default TTL of `60`.
5. Select `Add`.
> [!NOTE]
>
> Omit your domain from the record values in Resend when you paste. Instead of
> `send.example.com`, paste only `send` (or `send.subdomain` if you're using a
> subdomain).
Below is a mapping of the record fields from Resend to Vercel:
| Vercel | Resend | Example Value |
| - | - | - |
| Type | Type | `TXT Record` |
| Name | Name | `send` |
| Value | Content | `"v=spf1 include:amazonses.com ~all"` |
| TTL | TTL | `Use Vercel default (60)` |
## Add TXT DKIM Records
In the same section, add another record in Vercel.
1. Type `resend._domainkey` for the `Name` of the record.
2. Expand the `Type` dropdown and select `TXT`.
3. Copy the record value from Resend into the `Value` field in Vercel.
> [!NOTE]
>
> Omit your domain from the record values in Resend when you paste. Instead of
> `resend._domainkey.example.com`, paste only `resend._domainkey` (or
> `resend._domainkey.subdomain` if you're using a subdomain).
Below is a mapping of the record fields from Resend to Vercel:
| Vercel | Resend | Example Value |
| - | - | - |
| Type | Type | `TXT Record` |
| Name | Name | `resend._domainkey` |
| Value | Content | `p=example_domain_key_value` |
| TTL | TTL | `Use Vercel default (60)` |
## Receiving Emails
If you want to receive emails at your domain, toggle the "Receiving" switch on the domain details page.
> [!WARNING]
>
> When you enable Inbound on a domain, Resend receives *all emails* sent to that
> specific domain depending on the priority of the MX record. For this reason,
> we strongly recommend verifying a subdomain (`subdomain.example.com`) instead
> of the root domain (`example.com`). Learn more about [avoiding conflicts with
> your existing MX
> records](/docs/knowledge-base/how-do-i-avoid-conflicting-with-my-mx-records).
> [!NOTE]
>
> Always copy the MX record value shown on your domain's page in Resend. The
> values in this guide are examples. Depending on your domain you will see
> `receive.forge.rmta.net`, a regional variant such as
> `receive-euw1.forge.rmta.net`, or `inbound-smtp..amazonaws.com`.
Copy and paste the values in Resend to Vercel:
1. Type `inbound` (or whatever your subdomain is) for the `Name` of the record in Vercel.
2. Expand the `Type` dropdown and select `MX`.
3. Copy the MX Value from Resend into the `Value` field in Vercel.
4. Add `10` for the `Priority`.
5. Select `Add`.
Below is a mapping of the record fields from Resend to Vercel:
| Vercel | Resend | Example Value |
| - | - | - |
| Type | Type | `MX Record` |
| Name | Name | `inbound` |
| Value | Content | `inbound-smtp.us-east-1.amazonaws.com` |
| TTL | TTL | `Use Vercel default (60)` |
| Priority | Priority | `10` |
After verifying your domain, create a webhook to process incoming emails. For help setting up a webhook, how to access email data and attachments, forward emails, and more, see [our guide on receiving emails with Resend](/docs/dashboard/receiving/introduction).
## Complete Verification
Now click [Verify DNS Records](https://resend.com/domains) on your Domain in Resend. It may take a few hours to complete the verification process (often much faster).
## Troubleshooting
If your domain is not successfully verified, these are some common troubleshooting methods.
> **Resend shows my domain verification failed.**
>
> Review the records you added to Vercel to rule out copy and paste errors.
> **It has been longer than 72 hours and my domain is still Pending.**
>
> [Review our guide on a domain not verifying](/docs/knowledge-base/what-if-my-domain-is-not-verifying).