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Insights on email privacy & productivity.

Tips, guides, and deep dives from the Cleanbox team.

How to Set Up a Custom Domain Mailbox
domains setup guide how-to

How to Set Up a Custom Domain Mailbox

A complete guide to setting up email on your own custom domain. From registering a domain to configuring DNS records, choosing between full hosting and alias forwarding, and testing authentication - everything you need for a working custom domain mailbox.

9 min read Apr 3, 2026
How to Set Up a Professional Email Address in Under 10 Minutes
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How to Set Up a Professional Email Address in Under 10 Minutes

A no-nonsense guide to getting you@yourbusiness.com working in 10 minutes flat. No enterprise tools, no overkill.

6 min read Mar 30, 2026
Email Accessibility: Making Your Messages Readable for Everyone
email management tips business

Email Accessibility: Making Your Messages Readable for Everyone

One in five people has a disability. Your emails should work for all of them. Practical guidelines for accessible email - alt text, semantic HTML, plain text, color contrast, and screen reader compatibility.

15 min read Mar 25, 2026
Everything You Need to Know About Using Subdomains for Email
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Everything You Need to Know About Using Subdomains for Email

info.brand.com, news.brand.com, mail.brand.com - subdomains are everywhere in email. When are they legitimate, when are they phishing, and should you use them for your own domain?

12 min read Mar 21, 2026
Registration and Password Reset Bombardment: How to Stop It
security spam how-to

Registration and Password Reset Bombardment: How to Stop It

Attackers flood your inbox with hundreds of signup confirmations and password reset emails. Why it happens and how aliases and rate limiting stop it.

8 min read Mar 16, 2026
The Complete Guide to Deleting Old Online Accounts
privacy how-to tips

The Complete Guide to Deleting Old Online Accounts

That forum you signed up for in 2014. The shopping site you used once. The fitness app you tried for a week. Every dormant account holds your personal data and is a breach waiting to happen. Here is how to find them, delete them, and handle the ones that refuse to go away.

9 min read Mar 12, 2026
Monitoring Your Domain's Email Health with the Cleanbox API
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Monitoring Your Domain's Email Health with the Cleanbox API

Build a daily monitoring script that tracks spam rates, delivery failures, quarantine backlog, and usage trends - then sends a summary to Slack. Python implementation with working API calls.

15 min read Mar 9, 2026
What Your Email Metadata Reveals About You (Even When the Content Is Encrypted)
privacy security technology

What Your Email Metadata Reveals About You (Even When the Content Is Encrypted)

You encrypted the body. But the headers still show who you emailed, when, from where, which device, which client, and how often. Email metadata is a surveillance goldmine - here is what it contains and how to limit your exposure.

16 min read Mar 3, 2026
Email Forwarding Services Compared - ImprovMX vs Cloudflare vs ForwardEmail (2026)
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Email Forwarding Services Compared - ImprovMX vs Cloudflare vs ForwardEmail (2026)

Five email forwarding services compared side by side - features, spam filtering, pricing, and which one fits your situation. Honest breakdown with no fluff.

9 min read Feb 27, 2026
The Best Free Email Tools for Privacy in 2026
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The Best Free Email Tools for Privacy in 2026

Nine free tools that protect your email privacy right now - aliases, breach monitoring, tracker blocking, password managers, and more. No subscriptions needed.

7 min read Feb 23, 2026
Building an Email Security Stack for Small Businesses in 2026
security business setup guide

Building an Email Security Stack for Small Businesses in 2026

A practical, budget-conscious guide to layered email security - DNS, filtering, training, and monitoring for teams of 1 to 50.

14 min read Feb 18, 2026
Email Threat Landscape: 10 Types of Attacks Targeting Your Inbox
security spam threats

Email Threat Landscape: 10 Types of Attacks Targeting Your Inbox

From phishing to BEC to zero-font tricks - the 10 most common email-based attacks in 2026, how they work, and how each one is stopped.

12 min read Feb 14, 2026