ISP vs. ESP: What’s the Difference?
Two crucial players stand out in cyberspace: Internet Service Providers (ISPs) and Email Service Providers (ESPs). While their…
More from Email Infrastructure
Practical guidance on setup, configuration, and compliance across SMTP, DNS, authentication, IP reputation, and the systems that power email delivery.
Multiple SPF Records for One Domain
If you’re employed in the corporate world or run your own business, you likely rely on emails as…
What Is IP Blacklisting?
A blacklisted IP address is an Email Manager’s worst nightmare. Depending on your background, IP Blacklisting can mean…
Email Return Path: How To Use It to Your Advantage
The goal of every email marketer is simple: land their emails straight into their target’s inboxes. Yet, the…
Mastering SPF Syntax: A Step-by-Step Guide
Just like how a fingerprint biometric or PIN code communicates to your phone that you’re the device owner,…
The Essentials of Email Infrastructure
Email marketing usually involves a complex web of elements like servers, domain name systems, and IP addresses- all…
DMARC Quarantine: A Comprehensive Overview
Nearly 1.2% of all global emails are malicious, translating to 3.4 billion daily phishing emails. [1] Cybercriminals do…
DMARC Report: All You Need to Know
With the rise of sophisticated phishing attacks and email spoofing, ensuring the security and authenticity of emails has…
SPF Limit: It’s Not as Difficult as You Think
SPF Limit. No, we’re not discussing the Sun Protection Factor recommendation of at least 30. While such SPF…
DMARC Failure: What Causes It and How To Prevent It
Every day, cybercriminals send a whopping 3.4 billion emails pretending to be your trusted pals. We call…