Domains

Domains are required to send emails at scale

Humanic sends emails using a domain you own. We recommend using subdomains (e.g., updates.yourdomain.com) to isolate your sending reputation and communicate your intent.

In order to verify a domain, you must set two DNS entries:

1. SPF: list of IP addresses authorized to send email on behalf of your domain

2. DKIM: public key used to verify email authenticity

These two DNS entries grant Resend permission to send email on your behalf. Once SPF and DKIM verify, you can optionally add a DMARC record to build additional trust with mailbox providers.

What are SPF records

Sender Policy Framework (SPF) is an email authentication standard that allows you to list all the IP addresses that are authorized to send email on behalf of your domain.The SPF configuration is made of a TXT record that lists the IP addresses approved by the domain owner. It also includes a MX record that allows the recipient to send bounce and complaint feedback to your domain.

What are DKIM records

DomainKeys Identified Mail (DKIM) is an email security standard designed to make sure that an email that claims to have come from a specific domain was indeed authorized by the owner of that domain.The DKIM configuration is made of a TXT record that contains a public key that is used to verify the authenticity of the email.