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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). This allows for proper reputation segmentation based on topics or purpose (e.g. transactional and marketing).

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Login to Porkbun

Login to your Porkbun account:
  1. Select the DNS option under your domain to manage DNS records.
Domain Details

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Add MX SPF Record

In the DNS section on Porkbun copy and paste the values MX from Resend:
  1. On the Type page, choose MX.
  2. Type send for the Host of the record.
  3. Copy the MX Value from Resend into the Answer / Value field.
  4. Use the default TTL of 600.
  5. In the Priority field enter 10.
  6. Select Add.
Domain Details Domain Details Below is a mapping of the record fields from Resend to Porkbun:
PorkbunResendExample Value
TypeTypeMX Record
HostNamesend
Answer / ValueValuefeedback-smtp.us-east-1.amazonses.com
TTL-600
PriorityPriority10
Do not use the same priority for multiple records. If Priority 10 is already in use on another record, try a number slightly higher like 11 or 12.

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Add TXT SPF Record

On the same section:
  1. On the Type page, choose TXT.
  2. Type send for the Host of the record.
  3. Copy the TXT Value Resend into the Answer / Value field.
  4. Use the default TTL of 600.
  5. Select Add Record.
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 Porkbun:
PorkbunResendExample Value
TypeTypeTXT Record
HostNamesend
Answer / ValueValue"v=spf1 include:amazonses.com ~all"
TTL-600

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Add TXT DKIM Records

On the same Create Record section:
  1. On the Type page, choose TXT.
  2. Type resend._domainkey for the Host of the record.
  3. Copy the TXT Value Resend into the Answer / Value field.
  4. Use the default TTL of 600.
  5. Select Add Record.
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).
Domain Details Domain Details Below is a mapping of the record fields from Resend to Porkbun:
PorkbunResendExample Value
TypeTypeTXT Record
HostNamesend
Answer / ValueValuep=MIGfMA0GCSqGSIbRL/a21QojogA+rYqIQXB/3DQEBDAQAB
TTL-600

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Complete Verification

Now click Verify DNS Records on your Domain in Resend. It may take a few 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.