All Tags

Email authentication, encryption, and threat prevention best practices.

Email protocols, configuration, and best practices for reliable messaging.

Core DNS concepts, record types, and domain name system fundamentals.

DomainKeys Identified Mail setup, key rotation, and troubleshooting.

Domain-based Message Authentication implementation and policy configuration.

SMTP protocol configuration, relay setup, and mail server basics.

Sender Policy Framework records, include mechanisms, and lookup limits.

Strategies to improve email inbox placement and sender reputation.

DNSSEC guides and tutorials: sign and validate DNS zones to strengthen your infrastructure security.

Brand Indicators for Message Identification setup and logo requirements.

Public DNS resolvers comparison, configuration, and performance analysis.

DNS over HTTPS configuration, privacy benefits, and browser support.

MTA-STS guides and tutorials: secure email transport with mandatory TLS encryption.

Phishing attack prevention, detection, and email security measures.

Data protection, GDPR compliance, and privacy-focused DNS solutions.

Email sender authentication methods and identity verification.

Guides and tips on domain names: selection, registration, management, and brand protection strategies.

DNS over TLS implementation, port 853 configuration, and security.

REST APIs, webhooks, and programmatic DNS management.

DANE guides and tutorials: authenticate TLS certificates via DNS using DNSSEC and TLSA records.

Gmail-specific features, settings, and deliverability requirements.

Microsoft 365 and Outlook email configuration and DNS setup.

Transactional email best practices, triggers, and deliverability.

Everything about .brand TLDs: strategic benefits, case studies, and guide to obtaining your own brand extension.

Google services, Gmail integration, and Google Workspace configuration.

Everything about gTLDs (generic Top-Level Domains): new extensions, ICANN application process, and adoption strategies.

News and analysis about ICANN, the global organization that coordinates domain names and IP addresses on the Internet.

Search engine optimization, Google indexing, crawl budget and technical SEO tips.

Email security gateways, inbound and outbound filtering, and related DNS configuration.

Email marketing campaigns, list management, and engagement strategies.

Protect your emails with SPF, DKIM, DMARC, and email security best practices.

Model Context Protocol integration for AI-powered DNS tools.

System design, infrastructure patterns, and technical architecture.

DNS latency optimization, caching strategies, and speed benchmarks.

DNS-based parental controls and content filtering for families.

HTTP redirects 301, 302, 307, vanity URLs, link tracking and redirect best practices.

TLS-RPT guides and tutorials: monitor SMTP TLS failures with SMTP TLS Reporting (RFC 8460).

TLSA guides and tutorials: understand and configure DNS TLSA records for DANE.

Guides on email blacklists (DNSBL): IP verification, delisting procedures and listing prevention.

CaptainDNS platform features, tutorials, and usage guides.

Cloudflare DNS, security features, and performance optimization.

Discover domain extensions (TLDs): comparisons, news, and tips for choosing the right extension.

Google Workspace email setup, DNS records, and admin configuration.

HTTP protocol, redirects, status codes, HTTPS and web best practices.

DNS and email monitoring, alerting, and observability tools.

Network infrastructure, protocols, and connectivity fundamentals.

Verified Mark Certificates for BIMI logo authentication.

Artificial intelligence applications in email and DNS management.

Using ChatGPT and OpenAI models for DNS and email assistance.

IPv6 adoption, dual-stack configuration, and migration strategies.

Firewall configuration, DDoS protection, and network hardening.

OAuth 2.0 authentication for email APIs and integrations.

Sinch Mailgun and communication platform integration.

Cloudflare's 1.1.1.1 DNS resolver configuration and features.

Google Public DNS 8.8.8.8 setup and performance characteristics.

Quad9 DNS 9.9.9.9 security features and malware blocking.

Articles and guides about Abnormal Security, the AI-powered email protection platform against phishing, BEC, and advanced threats.

Marketing automation, transactional email and ActiveCampaign integrations.

AdGuard DNS ad-blocking and privacy protection features.

Connecting AI assistants with DNS and email authentication tools.

ALIAS and ANAME records for apex domain CNAME functionality.

Amazon Simple Email Service configuration and deliverability optimization.

Apple Mail configuration, privacy features, and iOS settings.

Building applications with CaptainDNS SDK and API integrations.

Authenticated Received Chain for email forwarding authentication.

Auth0 identity platform integration for email authentication.

Amazon Web Services for DNS hosting and email infrastructure.

Brevo (formerly Sendinblue) email marketing and transactional setup.

How web browsers handle security headers, TLS, cookies, and modern web standards.

Cisco Secure Email (formerly Ironport) gateway, ESA/CES/ETD architecture, DNS configuration and integration with SPF, DKIM and DMARC.

CleanBrowsing family-safe DNS filtering and content control.

Common Mark Certificates as an alternative to VMC for BIMI.

DigiCert certificates for BIMI, VMC, and email security.

Online identity verification, brand protection, and trust signals.

Next generation DKIM specification and improvements.

DMARC version 2 draft specifications and upcoming changes.

European Union's DNS4EU initiative for digital sovereignty.

Domain registration, management, and DNS zone configuration.

DNS over QUIC protocol, low latency benefits, and modern DNS encryption.

EDNS Client Subnet for improved DNS geolocation accuracy.

Explore articles and guides about Fr on CaptainDNS.

Geographic DNS routing and location-based content delivery.

Web, DNS and email hosting: practical guides and best practices.

HTTP Strict Transport Security, preload list, max-age and includeSubDomains directives, stack configurations.

HTTPS, TLS, certificates, secure redirects and web encryption best practices.

Internet standards, RFCs, and protocol specifications.

IMAP email access protocol and mailbox synchronization.

IP address management, allocation, and network addressing concepts.

IPv4 addressing, subnetting, and legacy network configuration.

Migrating from IPv4 to IPv6 with tunneling and translation techniques.

Mailchimp setup and Mandrill transactional email service configuration.

Mailgun API for transactional email, DNS authentication, and deliverability.

Mailjet email service setup and transactional email configuration.

Mandrill (Mailchimp Transactional Email) setup and transactional email configuration.

Mimecast email security gateway, DNS configuration, and integration with SPF, DKIM, and DMARC.

NextDNS privacy-focused resolver with customizable filtering.

POP3 email retrieval protocol and client configuration.

Postmark API integration, DNS configuration, and transactional email deliverability.

CaptainDNS product updates, features, and announcements.

Proofpoint secure email gateway, Nexus AI architecture, DNS configuration and integration with SPF, DKIM and DMARC.

Free public DNS services, their features, and privacy policies.

Quad9 DNS service with built-in security and threat blocking.

SendGrid email API integration, authentication, and deliverability.

DNS and email security guides and best practices for small and medium-sized businesses.

All articles on DNS strategy, TLD selection, planning, and technical decisions.

Surfshark VPN and DNS privacy protection services.

Transport Layer Security, certificates, encryption, handshakes and network security best practices.

Twilio communication APIs for email and messaging integration.

Yahoo Mail deliverability requirements and authentication setup.

Yahoo Mail specific settings and email delivery requirements.

Chrome, Firefox, Safari, Edge: behaviors, security policies and web compatibility.