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security 69
tips 61
how-to 50
privacy 48
technology 40
spam 32
email management 31
business 24
comparison 23
domains 19
aliases 17
phishing 16
deliverability 14
email authentication 12
behind the scenes 9
productivity 9
relay 7
newsletters 6
product 6
setup guide 6
api 5
developer 5
threats 5
troubleshooting 5
ai 4
automation 2
filters 2
gmail 1
DNS for Email: Everything You Need to Know (But Were Afraid to Ask)
MX, SPF, DKIM, DMARC, PTR, BIMI, MTA-STS - a plain-English deep dive into every DNS record that affects email delivery, authentication, and security.
The Problem with TLD Reputation: Why .xyz and .top Domains Get Blocked
Some domain extensions have such a bad reputation that email from them is blocked by default. Which TLDs are affected, why, and how to filter on them.
Spam Filters Explained: How Email Providers Decide What Is Spam
Bayesian classifiers, IP blacklists, authentication checks, and machine learning - how modern spam filters work under the hood, and why they sometimes get it wrong.
Email Security Made Simple - A 6-Step Setup Guide
One tool is never enough. This guide walks through six proven security layers - from aliases to encryption - that anyone can set up in an afternoon.
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