Free Developer Tool

SPF, DKIM & DMARC Record Generator

Generate accurate DNS TXT records for your domain to satisfy Gmail, Yahoo, and Outlook 2026 sender guidelines. Prevent spoofing and ensure 100% inbox placement.

Domain Settings

Your Sending Domain:

DKIM Selector:

DMARC Policy:

DMARC Aggregate Reports Email (RUA):

Generated DNS TXT Records

1. SPF Record

Host / Name: @ or yourdomain.com

v=spf1 include:sendporter.com ~all

2. DKIM Record

Host / Name: sp._domainkey.yourdomain.com

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC3SendPorterGeneratedKey...

3. DMARC Record

Host / Name: _dmarc.yourdomain.com

v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com; pct=100; sp=none;

Automate your domain authentication with SendPorter

Connect your domain to SendPorter and we'll automatically verify and monitor your DNS authentication health.

Request access