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security

How to Use DANE (DNS-Based Authentication of Named Entities) to Secure Email and TLS Without Relying on Certificate Authorities

Learn how DANE (DNS-Based Authentication of Named Entities) can secure email and TLS connections without relying entirely on certificate authorities. This guide explains DANE’s mechanics, practical implementation steps for SMTP and HTTPS, and tips to reduce CA-related risk using DNSSEC-protected TLSA records.

Jul 13, 2026 5 views

security

MTA-STS and TLS-RPT: How to Enforce Secure Email Delivery with DNS Records

MTA-STS and TLS-RPT are two DNS-based email security standards that enforce encrypted delivery and provide failure reports. This guide explains how to set them up with practical steps, policy examples, and actionable tips to protect your domain from email interception.

Jul 10, 2026 11 views

dns

How to Use Reverse DNS (PTR Records) to Improve Email Deliverability and Network Security

Reverse DNS (PTR records) is a critical but often overlooked component of email deliverability and network security. This article explains how PTR records work, why they matter for preventing spam and mitigating attacks, and provides step-by-step guidance on setting them up correctly for your domains and mail servers.

Jul 1, 2026 19 views

brand-protection

How to Implement BIMI (Brand Indicators for Message Identification) to Boost Email Trust and Brand Visibility

BIMI (Brand Indicators for Message Identification) puts your brand logo right next to your emails in supported inboxes, boosting trust and click-through rates. This guide walks you through implementation prerequisites, DNS setup, and practical tips to get your logo approved and live.

Jun 28, 2026 33 views

security

How to Check if Your Domain Is Blacklisted and How to Fix It

Being blacklisted can destroy your email deliverability and tank your website traffic. This guide shows you how to quickly check if your domain is on any major blocklist, explains the most common causes, and gives you a step-by-step action plan to get delisted and stay clean.

May 19, 2026 95 views

guides

How to Check Email Deliverability: SPF, DKIM, DMARC Explained

Poor email deliverability can cause your messages to land in spam. Learn how to check and fix SPF, DKIM, and DMARC records for better email delivery.

Apr 18, 2026 107 views