Every lighthouse
has a keeper.
Trusting your email security to a company you've never heard of is a big ask. Meet the team behind this one.
DMARC has existed since 2012.
Most tools for it still look like 2012.
2012
The standard arrives.
Built by the industry's biggest senders and receivers. The tooling that grew up around it pointed one way: SOC teams, raw XML, and pricing pages that open with “contact sales.”
2024
The mandate lands.
Gmail and Yahoo begin turning away unauthenticated bulk mail. Overnight, a DMARC posture stops being an enterprise nicety and becomes table stakes for anyone who sends email.
2025
No one is exempt.
Microsoft follows for Outlook. Every invoice, quote, and newsletter now rides on DNS records most business owners have never had to think about.
A small business owner does not have a SOC team. They have a Tuesday afternoon and a domain that needs to keep landing in inboxes.
Twenty years of watching email get attacked.
TrustYourInbox is where a career spent inside email security ended up. The short version:
The first decade
Learning how attacks land.
Solutions engineering at McAfee and Bromium, in the rooms where enterprises fought malware and phishing. The lesson that stuck: a security product fails the moment the person running it needs a manual.
2016
Agari, where DMARC grew up.
Agari's founders helped create the DMARC standard itself. Dinesh joined as a sales engineer and sat with some of the world's biggest brands while they rolled it out, then moved into product management because he kept pulling what customers actually needed back into the product. Year after year, he watched enforcement stop spoofing cold, one Fortune 500 deployment at a time.
2024
The rules changed for everyone.
Google and Yahoo made DMARC mandatory for bulk senders, and Microsoft followed in 2025. Suddenly every business that sends email needed the posture only enterprises had, and nothing on the market was built for them.
Today
The same playbook, self-serve.
TrustYourInbox is that enterprise deployment experience rebuilt as a product one person can run: plain English, public pricing, one-click fixes, free for one domain.
From the founder
I spent my years at Agari on both sides of the same table. As a sales engineer I sat with customers while they untangled their sending, and later, in product management, I built what those rooms kept asking for. The pattern never changed: DMARC works. Enforcement stops spoofing. But getting there took an enterprise contract, a deployment team, and months.
When Google and Yahoo made authentication mandatory in 2024, the problem I had spent a decade on suddenly belonged to everyone. Every invoice, every quote, every newsletter now depends on DNS records most business owners have never heard of. The tools I knew were priced and built for enterprises, and I kept thinking about everyone else.
So this is my answer: the playbook I walked Fortune 500 brands through, rebuilt so you can run it yourself in an afternoon. There is no sales team, because I do not want one. And if you write to support, there is a good chance you are talking to me.
Dinesh Mistry
Founder, TrustYourInbox · LinkedIn
Our mission
Make email authentication legible. A small business deserves the same deliverability, and the same protection from people spoofing its domain, as a Fortune 500, without the consulting fee, the sales call, or the dashboard that needs a manual.
Have a question before you start? .
Start with one domain.
Free.
Set up in five minutes. A daily digest, plain-English reports, and one-click fixes when something breaks.