SPFK.info — tools

SPFK.info is your go-to knowledge base for email authentication protocols including SPF (Sender Policy Framework), DKIM, DMARC, and anti-spam best practices. Learn how to protect your domain from spoofing, configure DNS records correctly, and keep your emails out of spam folders.

Tools

Explore our collection of articles and guides about tools.

Browse by Category

SPF Guides

Step-by-step guides on setting up, testing, and troubleshooting Sender Policy Framework (SPF) records for your domain.

DKIM & DMARC

Everything you need to know about DomainKeys Identified Mail (DKIM) and Domain-based Message Authentication, Reporting & Conformance (DMARC).

DNS Configuration

How to configure DNS TXT records, understand DNS propagation, and manage your domain's email authentication setup.

Email Deliverability

Best practices to ensure your emails land in inboxes — covering reputation, bounce management, warming, and authentication alignment.

Security & Anti-Spam

Protect your domain from spoofing, phishing, and spam abuse. Learn about email security threats and how authentication protocols defend against them.