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Zero Trust Email Security

Every email is guilty until proven safe.

Gateway and API, unified like never before. Everything you need to protect your clients, out of the box, from day one.

Schedule time with our team.

Prefer to talk now? 800-913-7740.

Zero trust foundation Perimeter-level threat control API behavioral intelligence No MX or DNS changes Inbox focus controls Sensitive message locks Point-and-click mail flow Multi-tenant rollout
Shield by Mailprotector
For your clients

A calm inbox

A typical user gets 117 emails* a day and only about a third need a reply. Shield sorts that out before anything lands, so nobody spends their morning guessing if something is real.

Shield learns who each user talks to and builds them a personal trust network

Trust or silence any new sender in one tap

Every message shows its risk level up front, in plain language

Animation of a Shield risk banner appearing at the top of a message in Outlook, labelling the sender as new and offering Trust or Silence
For your team

Fewer tickets

Shield Ctrl gives your techs one console for every tenant. Build mail flow by clicking instead of scripting, apply it to one client or all of them, and see exactly what happened to any message without leaving the screen.

No-code workflow builder with templates

Global search across every tenant with a full delivery timeline

Roll out user by user, no MX changes

The Shield Ctrl console dashboard, listing threats identified across nine client organizations with counts by risk level

*Microsoft Work Trend Index, "Breaking down the infinite workday," 2025

Proven with MSPs like you

100%

U.S.-based support

A dedicated team with former MSPs on staff, like an extension of your team.

99.7%

Fewer phishing incidents

Reported by partners after switching to Shield.

1000+

MSP partners served

Backed by 20+ years building for the IT channel.

Not all email security is equal

Gateway or API? You shouldn't have to pick a side.

Stop paying for both. One tool covers edge to inbox.

What you're comparing

Gateway only

Stops at the edge

API only

Starts after delivery

Shield by Mailprotector

Edge to inbox

Stops threats before delivery Blocked at the perimeter, never delivered
Yes
No
Yes
Post-delivery remediation Pulls a message back after risk changes
No
Yes
Yes
Points of inspection Where a message actually gets judged
One, at the edge
One, in the mailbox
Edge to inbox
Threats stopped in every direction Inbound, outbound, and internal
No
Limited
Yes
MX record changes What it takes to turn on
Required
None
Optional
Learns from real behavior No phishing simulations required
No
Limited
Day one
What the end user sees Where risk shows up for the person reading mail
Quarantine digest
Nothing
Risk shown in the message
Who handles the release Every held message someone has to judge
Your help desk
Your help desk
The user, in one click
Tools to license
One, plus a gap
One, plus a gap
Just one
From the Trenches

Zero trust. Zero doubts.

Every time users go into X-ray, it shows them exactly why something might be suspicious and teaches better security habits in real-time. It's organic security awareness training.
Zachary Kinder
Zachary Kinder
Net-Tech Consulting
Shield applies AI technology in a really unique, impressive way. It looks at all my messages and adapts what's delivered based on my specific tendencies and preferences.
Michael Gdovic
Michael Gdovic
3N1 IT Consultants
We haven't had a single instance of anything getting through with malicious links, phishing attempts, or impersonations. Shield blocks everything we don't want while letting through what we do.
Jim Cooper
Jim Cooper
Silicon Valley Services

See what your email filter is letting through.

Schedule time with our team to see how Shield can improve your stack.

You'll be talking to a real member of our team

See available times