Cloudflare

Cloudflare DNS, security features, and performance optimization.

3 articles

April 2026

Cloudflare email ecosystem 2026: Email Routing, Email Service, Email Security, and DMARC Management

CaptainDNS · April 21, 2026

Cloudflare Email Service: Email Routing, Security, and DMARC Management explained

Cloudflare now covers 4 email layers: free Email Routing, transactional Email Service (public beta April 2026), anti-phishing Email Security (formerly Area 1), and DMARC Management. Complete guide covering architecture, DNS, Proofpoint/Mimecast comparison, and pricing.

Email Security
Cloudflare
Email Gateway
SPF

February 2026

Configure MTA-STS for Microsoft 365, Google Workspace, and Cloudflare

CaptainDNS · February 8, 2026

Configure MTA-STS for Microsoft 365 and Google Workspace

Step-by-step tutorial to deploy MTA-STS on Microsoft 365, Google Workspace, and Cloudflare. MX patterns, policy file, hosting, and validation included.

Email
MTA-STS
Microsoft
Google Workspace

December 2025

Illustration: 1.1.1.1 (Cloudflare), a public DNS resolver with DoH/DoT/ODoH options and a privacy focus

CaptainDNS · December 23, 2025

Cloudflare DNS (1.1.1.1): privacy, DoH/DoT, deployment

1.1.1.1 is Cloudflare's public DNS resolver. Here's how to use it properly (addresses, DoH/DoT/ODoH, tests, pitfalls) and deploy it.

DNS
Cloudflare
1.1.1.1
DNS resolver