Insights on email privacy & productivity.
Tips, guides, and deep dives from the Cleanbox team.
Your Email Was in a Data Breach - Now What?
Data breaches are inevitable. What matters is what you do next. A step-by-step recovery guide plus long-term strategies to prevent future exposure.
One-Click Unsubscribe - How It Works and Why Not Every Email Has It
Ever wonder why some emails show an unsubscribe button at the top and others do not? Learn how one-click unsubscribe works technically, why Google and Yahoo now require it, and when it is safe to use.
How We Built Contact Categorization (and Why It Changes Filtering)
Every sender is automatically sorted into one of 20 categories based on their domain. This is not just organization - it unlocks category-based filtering that works on emails you have never seen before.
How to Audit Your Online Accounts and Reduce Your Email Footprint
A step-by-step guide to finding every account tied to your email, closing unused ones, and migrating to aliases for better privacy.
Email Warmup Services: Why They Hurt More Than They Help
Email warmup tools promise better deliverability. The reality is they associate your domain with spam networks and damage your reputation.
Why Double Opt-In Matters (Even If You Are Not a Marketer)
As an email recipient, you benefit when senders use double opt-in. Here is why it reduces spam, prevents abuse, and how to tell which senders do it right.
The Complete Guide to Email Deliverability for Small Senders
You send fewer than 5,000 emails a day but messages still land in spam. A practical guide to authentication, reputation, and content for small-volume senders.
Email Aliases vs VPN: Different Privacy Tools for Different Problems
A VPN hides your IP address. Email aliases hide your email address. They protect different things - here is when you need which.
How to Protect Your Email Address When Shopping Online
Every time you enter your email at checkout, you are handing it to an unknown chain of marketing partners, analytics platforms, and data brokers. Here is how to shop online without sacrificing your inbox - from email aliases to guest checkout and privacy-first habits.
The Real Cost of Free Email: What You Pay When You Do Not Pay
Gmail, Outlook, and Yahoo are free because you are the product. What they collect, what it costs you, and where to draw the line.
How Gmail Detects Spam: An Inside Look at Google's Email Filtering
Gmail processes billions of emails daily with a multi-layered spam detection system. Here is how authentication checks, reputation scoring, machine learning, and user signals work together to filter spam.
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.
