Block lists and black lists. On the surface they sound virtually identical as security tactics for blocking digital threats. However, subtle yet important distinctions exist between these two lists operating in distinct ways that every cyber professional and evangelist should know.This definitive guide will decode exactly when and why to … Read more

When it comes to growing your mailing list, you have two paths – let users seamlessly signup with single opt-in or make them confirm via double opt-in. Learn the trade-offs and how to optimize both approaches. Understanding Single Opt-In for Email Signups If you just want to grab those email … Read more

Retrieving email is like the modern day pony express, relying on tried and true protocols to deliver those expectant messages. While POP3 handles most mailboxes, APOP and SPOP provide special protections that appeal to security-minded cowpokes. Read on to discover how these protocols authenticate and encrypt your inbox! Overview of … Read more

Allowing the right access while denying the wrong often feels like an endless security balancing act. Whitelists, blacklists and greylists can tip scales in your favor…Learn how these crucial access control techniques complement one another securing systems in layers. From zero trust whitelist principles through threat hunting blacklists to adaptive … Read more

Sending an email blast to your entire subscriber list might seem like an easy way to reach a massive audience instantly. But press that send button recklessly, and your hard-earned audience could mark you as spam quicker than you can say “unsubscribed!”Bulk email marketing takes strategy and finesse. Follow our … Read more

It’s Friday morning. You grab coffee, open the inbox, and find…one hundred bounce notices from addresses you never used? 😨 Welcome to the chaotic world of backscatter – the spammy fallout resulting from delivery failures. But what if tools like Bounce Address Tag Validation (BATV) could automatically intercept invalid notices? … Read more

Tired of phantom bounces haunting your inbox? Join the club. Backscatter strikes fear into the hearts of email admins everywhere.This guide will equip you with Jedi-level wisdom to defeat the backscatter scourge. We’ll demystify everything from sinister sources to protection protocols. Join me on a journey into email hygiene mastery. … Read more

Have you ever peeked under the hood of an email attachment or wondered about those long jumbled strings in message links? Base64 encoding makes it all possible!Base64 has enabled key email capabilities for decades by converting binary data into transportable text format. In this comprehensive guide, we’ll unpack how Base64 … Read more

When it comes to accessing our email, most don’t ponder protocols enabling inboxes daily. But these specs play integral roles shuttling messages securely behind the scenes if implemented properly… Securing communications remains imperative as email underpins life and business globally. By learning from veteran protocols, we can inform continued development … Read more

When your inbox suddenly overflows with return to sender messages, how do you tell the difference between legitimate delivery notifications and insidious backscatter spam? This guide examines the inner workings and distinguishing traits of these two bounce species to restore clarity. What is Backscatter? If you’ve ever unexpectedly received a … Read more