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Add Domain to Resend

First, log in to your Resend Account and add a domain. Domain Details
It is best practice to use a subdomain (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.

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Log in to Route 53

Then, log in to your AWS Management Console, and open Route 53 console, then click on your domain name. From there, click on Create Record. Domain Details

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Add MX SPF Record

  1. Type in send for the Record name.
  2. Select the Record type dropdown, and choose MX.
  3. Copy the MX Value from your domain in Resend into the Value field.
  4. Be sure to include the 10 in the Value field, as seen in the screenshot.
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).
Domain Details Domain Details Below is a mapping of the record fields from Resend to Route 53:
Route 53ResendExample Value
Record TypeTypeMX Record
Record nameNamesend
ValueValue & Priority10 feedback-smtp.us-east-1.amazonses.com
TTLTTLUse Route 53 Default (300)
Routing policy-Simple routing
Route 53 does not label the priority column, and you will need to add this in to the Value section, as shown in the screenshot. Do not use the same priority for multiple records. If Priority 10 is already in use, try a number slightly higher like 11 or 12.

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Add TXT SPF Record

In the same section, choose Add another record:
  1. Type in send for the Record name.
  2. Click the Record type dropdown.
  3. Select the Record type dropdown, and choose TXT.
  4. Copy TXT Value from your domain in Resend into the Value field.
Domain Details Domain Details Below is a mapping of the record fields from Resend to Route 53:
Route 53ResendExample Value
Record typeTypeTXT Record
Record nameNamesend
ValueValue"v=spf1 include:amazonses.com ~all"
TTLTTLUse Route 53 Default (300)
Routing policy-Simple routing
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).

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Add TXT DKIM Records

In the same section, choose Add another record:
  1. Type in resend._domainkey for the the Record name.
  2. Change the Record Type to TXT.
  3. Copy the TXT Value value from your domain in Resend to the Value text box.
  4. Click on Create Records.
Domain Details Domain Details Below is a mapping of the record fields from Resend to Route 53:
Route 53ResendExample Value
Record typeTypeTXT Record
Record nameNameresend._domainkey
ValueValuep=example_demain_key_value
TTLTTLUse Route 53 Default (300)
Routing policy-Simple routing
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).

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Receiving Emails

If you want to receive emails at your domain, toggle the “Receiving” switch on the domain details page. Enable Receiving Emails for a verified domain
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.
In the Route 53 console, click Create Record:
  1. Type in inbound (or whatever your subdomain is) for the Record name.
  2. Select the Record type dropdown, and choose MX.
  3. Copy the MX Value from your domain in Resend into the Value field.
  4. Be sure to include the 10 in the Value field (e.g., 10 inbound-smtp.us-east-1.amazonaws.com).
Below is a mapping of the record fields from Resend to Route 53:
Route 53ResendExample Value
Record TypeTypeMX Record
Record nameNameinbound
ValueContent & Priority10 inbound-smtp.us-east-1.amazonaws.com
TTLTTLUse Route 53 Default (300)
Routing policy-Simple routing
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.

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Complete Verification

Now click Verify DNS Records on your Domain in Resend. It may take up to 5 hours to complete the verification process (often much faster).

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Troubleshooting

If your domain is not successfully verified, these are some common troubleshooting methods.
Review the records you added to Route 53 to rule out copy and paste errors.