Insights on email privacy & productivity.
Tips, guides, and deep dives from the Cleanbox team.
Why Gmail Spam Filters Miss So Much and What to Add
Gmail catches 99.9% of spam according to Google. That still means thousands of spam messages per year for active users. Some types of spam get through consistently, and Gmail has structural blind spots that no amount of reporting will fix. Here is what they are and what you can layer on top.
Best Email Spam Protection for Custom Domains in 2026
Running a custom domain for email gives you control, but spam protection is your responsibility. Free email providers handle filtering for you. With a custom domain, you need to set it up yourself. Here is what actually works in 2026.
AI-Generated Spam Is Getting Harder to Detect - What Changed in 2026
Spam used to be obvious - broken grammar, suspicious links, Nigerian prince stories. AI has changed that. Modern spam is fluent, personalized, and passes the filters that caught everything before. Here is what is different and what still works.
Cleanbox vs ImprovMX - Email Forwarding vs Full Inbox Protection
ImprovMX is a lightweight email forwarding service for custom domains. Cleanbox adds spam filtering, contact management, Shield, and MX relay. Here is when each one makes sense.
What Is an MX Relay and Why Your Domain Needs One
An MX relay sits between the internet and your mail server, filtering every incoming email before it reaches your users. It stops spam, blocks viruses, and enforces authentication - without changing your email provider.
Cleanbox vs addy.io - Which Email Alias Service Fits Your Needs
addy.io offers unlimited free aliases and is open source. Cleanbox adds spam filtering, contact management, and per-alias protection. An honest side-by-side comparison covering features, pricing, and which one fits different use cases.
Email Aliases for Business - Why Teams Are Making the Switch
Businesses lose thousands of hours to spam, data breaches expose employee addresses, and shared inboxes create security gaps. Email aliases solve all three problems without changing your email provider.
How to Check If Your Email Has Been Hacked - 7 Warning Signs
Strange sent messages, password reset emails you did not request, or contacts receiving spam from your address are all signs of a compromised account. Here is how to check, what to do immediately, and how to lock your account down.
Best Email Providers for Privacy in 2026 - Ranked and Compared
Not all email providers treat your data the same way. We compare Gmail, Outlook, iCloud, Yahoo, ProtonMail, and Tuta on encryption, ad scanning, data collection, and what actually makes an email provider private.
Is Outlook Safe? Privacy and Security Reviewed for 2026
Outlook is the default for millions of businesses and one of the most popular free email providers. But between ad-driven scanning in the free tier, Exchange server exploits, and Microsoft broad data practices, how safe is it really?
How Email Tracking Pixels Work and How to Block Them
A tracking pixel is a tiny invisible image embedded in an email. The moment you open the message, it phones home with your IP address, device type, location, and the exact time you read it. Here is how it works and how to stop it.
What Happens When You Mark an Email as Spam
Clicking the spam button does more than hide a message. It trains your filter, damages the sender reputation, and can affect whether future emails from that domain reach anyone. Here is what actually happens in Gmail, Outlook, Yahoo, and Apple Mail.
