Beginner
SPF Record Setup
Learn how to create and configure Sender Policy Framework records to prevent email spoofing.
Email Security5 min
Current: SPF and DMARC alignment baseline
Knowledge Base
Learn DNS, Email Security & Deliverability
Current setup guides for authentication, transport security, DNS hardening, and mailbox provider sender requirements.
All Guides
7 guides available
Intermediate
DKIM Configuration
Set up DomainKeys Identified Mail to add digital signatures to your emails.
Email Security10 min
Current: 2048-bit keys recommended
Intermediate
DMARC Implementation
Configure DMARC policies to protect your domain from email spoofing and phishing.
Email Security8 min
Current: required for bulk sender compliance
Advanced
DNSSEC Setup
Enable DNS Security Extensions to protect your domain from DNS spoofing attacks.
DNS Security15 min
Current: verify registrar and TLD support first
Intermediate
MTA-STS Configuration
Enforce TLS encryption for incoming email with MTA Strict Transport Security.
Email Security10 min
Current: pair with TLS-RPT reporting
Beginner
Google, Yahoo & Microsoft Sender Requirements
Meet current mailbox provider rules for Gmail, Yahoo, Outlook.com, Hotmail, and Live inboxes.
Email Deliverability7 min
Updated: 2024 Google/Yahoo plus 2025 Microsoft rules
Advanced
BIMI Setup Guide
Display your brand logo in email inboxes with Brand Indicators for Message Identification.
Email Security12 min
Current: DMARC enforcement required
Ready to configure?
Use the matching checkers and generators to validate each guide before you publish DNS changes