#URGENT: Critical Issues Found in Your Email System

Dear Newsletter Operator,

Our routine audit has revealed critical issues that may cause total system failure. Please address these immediately to avoid newsletter bankruptcy.

#Gotcha #1: The Spam Folder Trap

Your emails will land in spam if you don't:

1. Set up SPF: tells receiving servers your domain is legit
2. Configure DKIM: cryptographic signature proving you sent it
3. Add DMARC: policy for handling auth failures
4. Warm up your domain: don't send 10.000 emails on day one

// DNS records you need:
TXT  _dmarc.yourdomain.com  "v=DMARC1; p=quarantine"
TXT  yourdomain.com          "v=spf1 include:resend.com ~all"
CNAME resend._domainkey      // Provided by Resend