The Buzzmark blog
Practical writing on transactional email: deliverability, SPF/DKIM/DMARC, inbound mail, EU data rules and how Buzzmark is built.
Showing posts from March 2026 Show all
2 min read
Hard Bounces vs. Soft Bounces: Reading the Signals
Not every bounce means the same thing. Telling a permanent failure apart from a temporary one — and reacting correctly to each — is one of the simplest ways to protect your sending reputation.
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What Is a Mail Stream? Meet the Hive
The single most useful structural decision you'll make as a sender is separating your mail into independent streams. In Buzzmark, those streams are called hives — here's what they are and how to use them.
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Why Your Transactional Emails Land in Spam (and How to Get Them Out)
A password reset in the spam folder is a support ticket waiting to happen. Here are the real reasons transactional mail gets filtered, ranked roughly by how often they're the culprit — and what to do about each.
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SPF, DKIM, and DMARC, Explained Without the Jargon
The three acronyms every sender has to deal with, in plain language. What each one actually proves, how they fit together, and why skipping any of them sends your mail straight to spam.
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Transactional vs. Marketing Email: What's the Difference, and Why It Matters
Password resets, receipts, and newsletters all travel over SMTP — but treating them the same is a fast way to hurt deliverability. Here's how transactional and marketing mail actually differ, and why keeping them apart protects both.
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