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Bulletproof Inbox - Email Screening & Filtering for Gmail & Outlook — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Email →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
demarcify.com ↗	66 match 2 shared topics	DMARC Monitoring & Email Security - Demarcify	en	email	robotsllmsaihumans	emailphone	partial · 8
accts.me ↗	66 match 2 shared topics	Anonymous Email Services for Secure Communication \| Accts	en	information-and-network-security	robotsllmsaihumans	emailphone	none
altmails.com ↗	66 match 2 shared topics	altmails \| Disposable anonymous email alias forwarding service	en	email	robotsllmsaihumans	emailphone	none
privatemail.com ↗	66 match 2 shared topics	PrivateMail - Anonymous Encrypted Email	en	information-and-network-security	robotsllmsaihumans	emailphone	none
1sec-mail.com ↗	65 match 2 shared topics	Temp Mail \| Online Disposable Email \| 1SecMail	en	email	robotsllmsaihumans	emailphone	none
lentmail.com ↗	65 match 2 shared topics	LentMail \| LentMail Private Emails	en	email	robotsllmsaihumans	emailphone	none
privatebox.io ↗	65 match 2 shared topics	Privatebox.io \| Protecting your email	en	information-and-network-security	robotsllmsaihumans	emailphone	none
privatemailguide.com ↗	65 match 2 shared topics	Private Mail Guide — Private & Encrypted Email	en	information-and-network-security	robots llmsaihumans	emailphone	partial · 6
4securemail.net ↗	65 match 2 shared topics	4SecureMail - Professional Secure Email for Business & Individuals	en	email	robotsllmsaihumans	emailphone	none
8shield.net ↗	65 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
4securemail.com ↗	65 match 2 shared topics	4SecureMail - Professional Secure Email for Business & Individuals	en	email	robotsllmsaihumans	emailphone	none
silomails.com ↗	65 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
simplelogin.com ↗	65 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
7rash.com ↗	64 match 2 shared topics	7rash.com — Disposable Email for Privacy & Spam Protection	en	email	robotsllmsaihumans	emailphone	none
jw2.io ↗	64 match 2 shared topics	JW2.IO - EMAIL	en	information-and-network-security	robotsllmsaihumans	emailphone	none
365smtp.com ↗	64 match 2 shared topics	365smtp.com - Safe and Compliant Email Sending for Office 365	en	information-and-network-security	robotsllmsaihumans	emailphone	none
trashmail.com ↗	64 match 2 shared topics	Aionda Mail - Quantum-Secure Email & Groupware from Germany	Germany~ en	email	robotsllmsaihumans	emailphone	none
myemailnotification.com ↗	64 match 2 shared topics	My Email Notification	en	information-and-network-security	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.