Tools
DMARC Record Generator
Create a DMARC record to protect your domain from phishing and spoofing. DMARC tells receiving servers what to do if SPF or DKIM fails.
v=DMARC1; p=none;
Add this as a TXT record. Name/Host must be _dmarc
Main Policy (p=)
Subdomain Policy (sp=)
Daily XML reports about email traffic.
Real-time reports of failed deliveries.