Stable signalUnknownMedium-risk permissions

Mistransmission Prevention - Satellite office

Prevents false email transmissions.

Users100KCurrent public install base

Rating3.0Store average score

Reviews2Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Mistransmission Prevention - Satellite office Media preview

5 assets

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7-day rating change

Start

3.00

Latest

3.00

7-day rating change

0.00

2026年7月13日2026年7月19日

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Technical snapshot

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Version1.3.6

ManifestV3

Size181KiB

Languages2English / 日本語

Published--

Store updated--

Last crawled--

Overview

Product summary

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Satellite office Mistransmission Prevention is an extension that adds a xxxx function to the G Suite mail screen.

(*) Satellite office Mistransmission Prevention is for G Suite users, and must be set up by a G Suite administrator before use.

Depending on the settings set by the G Suite administrator, you can display a confirmation screen in the following cases when sending an email, or you can prohibit sending an email.

- When the external domain is included in the destination. You can send it after confirming the external email address. You can prohibit it.

- When To / Cc contains more than the permitted number of external email addresses.

- When To / Cc contains more than the number of permitted internal / external email addresses.

Reviews

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Store average score3.0Chrome Web Store aggregate rating, including ratings without synced review text

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Reviews with text0Synced review bodies

Total ratings / reviews2Chrome Web Store public rating/review count

Store average score: 3.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

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Email mistransmission prevention (误送信防止) for Gmail within Google Workspace (G Suite) environments

Prevents employees from accidentally sending emails to wrong external recipients, with incorrect attachments, containing sensitive keywords, or violating corporate email compliance policies — reducing data leaks and compliance violations

1. G Suite admin configures email sending rules via the Sateraito Office backend web app. 2. The extension injects into Gmail compose windows (content_scripts on mail.google.com). 3. A 'Check Message' (送信チェック) button is added to each compose window. 4. When user clicks Send or the check button, the extension validates recipients, attachments, keywords, and time against admin-configured rules fetched from the backend. 5. If violations are detected, a confirmation dialog (with checkboxes for acknowledgment) or a blocking alert is shown. 6. User must acknowledge all warnings or the email cannot be sent.

Target users: Enterprise Google Workspace (G Suite) users / Japanese businesses requiring email compliance / Organizations with G Suite administrators who configure policies

Source code is minified/obfuscated (background.js and content.js), making exact logic tracing difficult
Cannot determine from source alone whether the Sateraito Office backend has paid business plans — only the hide_ad flag suggests possible paid tiers
The oauth2email parameter suggests OAuth2-based authentication but full token flow is not visible in the extension code

Monetization

Unknown

No monetization details are available yet.

Confidence: 0
Payment platform: --
Source: None / Medium
Login required: Yes
Reason: The extension requires the user to be logged into a Google Workspace (G Suite) account on Gmail. It reads the user's email from Gmail's interface and communicates it to the Sateraito Office backend (sateraito-apps-gososhinboshi.appspot.com) for configuration retrieval. @gmail.com personal accounts are explicitly blocked (content.js line 48 clears cookies and shows error). Additionally, a G Suite administrator must configure the backend before the extension functions.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage

Publisher

Sateraito Office

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

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