Blog on Reliable Email Delivery
Practical guides and explanations for anyone who needs their emails delivered reliably and trusted — and wants their recipients to easily spot and discard fraudulent messages sent in their name. Step-by-step SPF, DKIM, and DMARC setup, and how SPFmonitor can help.
Setting Up SPF, DKIM and DMARC at Czech Hosting Providers
Complete guide to setting up SPF, DKIM and DMARC at WEDOS, Forpsi and Active24. Exact DNS records, activation steps and troubleshooting for each Czech hosting provider.
· 8 min read
DMARC Fail — What It Means and How to Fix It
DMARC fail means your email failed authentication — usually due to missing SPF/DKIM or alignment issues. Learn how to diagnose the cause and fix it.
DNS Records for Email — A Complete Guide
MX, TXT, CNAME, PTR — every DNS record you need for email delivery and security in one place. Examples, rules, and a ready-to-use checklist.
How to Set Up SPF, DKIM, and DMARC for Google Workspace
Step-by-step guide to setting up SPF, DKIM, and DMARC for Google Workspace. From DNS records to DKIM activation in Admin console and DMARC deployment.
How to Check Your Domain's DKIM Record
How to verify your domain's DKIM record using an online analyzer, command line, and email headers. Find your selector, check the key, and interpret…
How to Check Your DMARC Record
DMARC links SPF and DKIM to your sender address. Learn how to verify your DMARC record using online analyzers, command-line tools, and email headers…
How to Check Your Domain's SPF Record
Three ways to verify your SPF record. Command line, online analyzer, and automated monitoring. Learn what to check and how to interpret the results.
How to Create an SPF Record Step by Step
A practical guide to creating an SPF record for your domain. From mapping senders and building the record to verifying it and managing the DNS lookup…
How to Read and Interpret DMARC Reports
DMARC aggregate reports in raw XML are hard to parse. Learn to read individual records, distinguish spoofing from misconfiguration, and…
How to Set Up a DKIM Record Step by Step
A practical guide to setting up DKIM for your domain. From key generation and DNS publishing to configuring Google Workspace, Microsoft 365, and self…
How to Set Up a DMARC Record for Your Domain
Step-by-step guide to setting up a DMARC record. From your first p=none record through report analysis to full protection with p=reject.
Setting Up SPF, DKIM, and DMARC for Microsoft 365
Complete guide to setting up SPF, DKIM, and DMARC for Microsoft 365. Step-by-step from DNS records through DKIM activation in the Defender portal to…
Sender Reputation — What It Is and How to Improve It
Sender reputation determines whether your emails reach the inbox or land in spam. Learn what affects it, how to check it, and how to systematically…