Vendifi Insights Is Now Live on the Microsoft Marketplace

Mar 31, 2026

Product · Email Security

Vendifi Insights Is Now Live on the Microsoft Marketplace

Vendifi Insights — Free Outlook Add-in Now available on the Microsoft AppSource Marketplace · Rated 5.0 ⭐

We're excited to announce that Vendifi Insights is now officially published on the Microsoft AppSource Marketplace — and it's completely free to get started. If you use Outlook for business email, this add-in gives you an instant, contextual security intelligence layer directly inside your inbox.

No switching tabs. No copy-pasting domains into external tools. Just open an email, and within seconds you can see the full security picture of whoever sent it.

What Does Vendifi Insights Actually Do?

When you receive an email from a supplier, partner, or unknown sender, Vendifi Insights automatically analyses the security posture of their email domain — giving you a scored, A-to-F grade in real time. Think of it as a credit score, but for email security hygiene.

Each check maps to a real-world attack vector. A domain missing DMARC enforcement can be trivially spoofed. Absent MTA-STS opens the door to SMTP downgrade attacks. Without DNSSEC, DNS responses can be poisoned mid-transit. Vendifi surfaces all of this, instantly, in the context you actually need it — while reading the email.

What Gets Checked

🛡️ DMARC, SPF & DKIM The holy trinity of email authentication. Vendifi checks policy enforcement level, not just presence — a DMARC record in p=none offers zero protection.	🔒 MTA-STS & SMTP TLS Ensures email in transit is encrypted and cannot be downgraded by man-in-the-middle attacks targeting your supplier's mail server.	🌐 DNSSEC Validates that DNS records are cryptographically signed, protecting against cache poisoning and DNS hijacking attacks that redirect email flows.
☠️ Ransomware Group Activity Cross-references the sender's domain against known ransomware group threat intelligence — a uniquely powerful signal for vendor risk assessments.	🔑 Breached Credentials Checks whether any credentials from the sender's domain have appeared in known data breaches — indicating heightened account takeover risk.	📊 Instant Scoring A composite security score from 0–100 with a letter grade, giving you an at-a-glance risk signal you can act on immediately.

🛡️

DMARC, SPF & DKIM

The holy trinity of email authentication. Vendifi checks policy enforcement level, not just presence — a DMARC record in p=none offers zero protection.

🔒

MTA-STS & SMTP TLS

Ensures email in transit is encrypted and cannot be downgraded by man-in-the-middle attacks targeting your supplier's mail server.

🌐

DNSSEC

Validates that DNS records are cryptographically signed, protecting against cache poisoning and DNS hijacking attacks that redirect email flows.

☠️

Ransomware Group Activity

Cross-references the sender's domain against known ransomware group threat intelligence — a uniquely powerful signal for vendor risk assessments.

🔑

Breached Credentials

Checks whether any credentials from the sender's domain have appeared in known data breaches — indicating heightened account takeover risk.

📊

Instant Scoring

A composite security score from 0–100 with a letter grade, giving you an at-a-glance risk signal you can act on immediately.

Why This Matters for Third-Party Risk

Business Email Compromise (BEC) remains one of the most financially damaging cyber threats globally. Attackers don't need to hack your systems — they spoof your suppliers, impersonate your CFO, or compromise a vendor's mailbox. In each case, a weak email security posture on the third party's domain is the enabler.

"Most organisations know they need to manage vendor risk. What they lack is the ability to do it in real time, in context, without adding friction to the people doing the actual work."

That's the exact problem Vendifi Insights solves. It meets your team where they already work — inside Outlook — and gives them the intelligence to make better trust decisions with every email they open.

For security-conscious organisations, procurement teams, and finance departments handling supplier payments, this is the kind of ambient security awareness that has historically required expensive dedicated tooling or a manual lookup workflow. Now it's free, and it takes about thirty seconds to install.

Who Is This For?

Procurement TeamsFinance & AP DepartmentsIT Security TeamsCISO & Risk OfficersLegal & ComplianceExecutive AssistantsVendor Relationship Managers

Essentially — anyone who receives email from external parties and needs to make decisions based on trust. Which, in a modern business, is nearly everyone.

Part of the Bigger Vendifi Picture

Vendifi Insights is the Outlook-native entry point into the broader Vendifi platform — a vendor risk management system built specifically for organisations that take third-party risk seriously. Where the add-in gives you real-time domain intelligence, the full Vendifi platform lets you build structured vendor risk programmes, track assessments over time, and produce board-level reporting on your supplier ecosystem.

Think of the add-in as the moment of awareness. The platform is where that awareness becomes systematic governance.

Get Vendifi Insights — It's Free

Available now on Microsoft AppSource for Outlook. No credit card. No setup complexity. Install in under a minute.

Get it on Microsoft Marketplace →