Email Authentication Setup
Configure DKIM and SPF for seq-test-1770693695-450@example.com
Current Status
DomainKeys Identified Mail
Sender Policy Framework
1. SPF Record Setup
Add a TXT record to your DNS for example.com:
Type: TXT
Host: @
Value: v=spf1 include:_spf.google.com ~all
Adjust the "include:" based on your email provider:
- Gmail/Google Workspace: include:_spf.google.com
- Outlook/O365: include:spf.protection.outlook.com
- SendGrid: include:sendgrid.net
- Amazon SES: include:amazonses.com
2. DKIM Record Setup
DKIM setup varies by provider. Get your DKIM key from your email service:
Gmail/Google Workspace
Admin Console → Apps → Google Workspace → Gmail → Authenticate email
SendGrid
Settings → Sender Authentication → Authenticate Your Domain
Amazon SES
Verified Identities → Select Domain → DKIM
3. DMARC Record (Recommended)
Add a DMARC policy to protect against spoofing:
Type: TXT
Host: _dmarc
Value: v=DMARC1; p=none; rua=mailto:dmarc@example.com
Start with p=none (monitor only), then move to p=quarantine or p=reject once verified.
DNS changes can take up to 48 hours to propagate.
Why is this important?
- ✅ SPF tells receiving servers which IPs can send email for your domain
- ✅ DKIM adds a digital signature to verify emails weren't modified
- ✅ DMARC tells servers what to do with failed SPF/DKIM checks
- ✅ Proper authentication improves deliverability and prevents spoofing