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Check a suspicious email without leaving your inbox. Jatzo scores the open message out of a hundred for phishing signals and shows the evidence behind the number.
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Listing updated:September 29, 2026
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5
Overview
Jatzo checks whether an email is trying to steal credentials, money or access, and shows you why.

Open a message, press Check this email, and Jatzo reads that one message and returns a score out of a hundred with the evidence behind it: who really sent it, whether the sending domain's authentication holds up, what the links and attachments do, and whether the message is asking for something a scam would ask for.

WHAT IT DOES

Scores the open message out of a hundred for phishing signals, and names the findings behind the score rather than giving you a verdict to take on trust.

Checks sender authentication using the headers your own provider wrote, so a forged pass cannot talk its way past.

Inspects links and supported attachments, including QR codes inside PDFs and inside the pictures in Word, Excel and PowerPoint files.

Reports a message to your IT address in one press, if your team uses Jatzo together.

Gives the same answer as the Jatzo website for the same message, because it is the same engine on the same path.

WHAT IT DOES NOT DO

It reads nothing until you press Check. It does not read a message because you opened it, and it never reads the rest of the thread or any of your other messages.

The message is analysed and not kept. Jatzo keeps the findings, not your email.

It asks for no access to your mailbox, your contacts or your files.

WHAT YOU NEED

A Jatzo account on a paid plan, and a connection code created on your account page at https://app.jatzo.co.uk/account. The add-on will show you where to get one.

Jatzo Ltd is registered in England and Wales, company number 17467782, and is registered with the Information Commissioner under reference ZC254981.
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Jatzo Email Security will ask for the permissions shown below. Learn more
Jatzo Email Security will need access to your Google account
This will allow Jatzo Email Security to :
Run as a Gmail add-on
View your email messages when you interact with the add-on
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
Associate you with your personal info on Google
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