Email Send Guard

Email Send Guard helps prevent accidental data leaks by showing a confirmation popup before sending messages when potential risk is detected.

Works on
Gmail (mail.google.com)
Front (app.frontapp.com)
Zendesk Agent Workspace (*.zendesk.com)

When it warns you
A warning appears before sending if any of the following are detected:

1. PII in the message body (e.g., email addresses, phone numbers, SSN-like patterns, PAN-like patterns)

2. Sensitive attachments (e.g., .pdf, .csv, .xls, .xlsx, .zip)

3. External recipients / risky recipient patterns based on your organization’s internal domains (e.g., @infeedo.com)

What happens
Click Send / Submit
If risk is detected, a popup appears listing the reasons

Choose:
Cancel (stops sending)
Send Anyway (proceeds)

Privacy
Runs locally in your browser as a content script on supported sites.
Does not require account sign-in.
Does not store message content.