Generate DKIM (DomainKeys Identified Mail) DNS records to authenticate emails and prevent tampering.
| Type | Host/Name | Value |
|---|---|---|
| TXT | - | - |
| Provider | Selector | DNS Name |
|---|---|---|
| Google Workspace | google._domainkey | |
| Microsoft 365 | selector1, selector2 | selector1._domainkey |
| Zoho | zmail | zmail._domainkey |
| SendGrid | s1, s2 | s1._domainkey |
| Mailchimp | k1 | k1._domainkey |
DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to outgoing emails. The receiving server verifies this signature against a public key published in your DNS records, ensuring the email wasn't tampered with in transit.
Your email provider generates the DKIM key pair. Check your admin panel: Google Workspace → Admin Console → Apps → Gmail → Authenticate email. Microsoft 365 → Admin → Settings → Domains → DKIM.