Gmail送信前チェッカー

Gmail の誤送信対策の拡張です。Gmail でメールを送る際、TO/CC/BCC に間違ったお客様のアドレスを追加してしまわないように、ポップアップで TO/CC/BCC の内容を判りやすく確認することができるようになります。

Users90K

Rating4.5

Reviews12

Manifest version--

7-day growth0

7-day growth rate0%

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30-day rating change

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4.50

Latest

4.50

30-day rating change

0.00

2026年6月2日2026年6月8日

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Languages0Unknown

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Overview

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The Chrome Web Store shows 12 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

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AI product read

Gmail pre-send verification popup that intercepts the Send button and displays TO/CC/BCC recipients grouped by domain for manual confirmation before sending

Prevents accidental email mis-sending to wrong recipients by forcing a domain-by-domain visual confirmation step before the Send button becomes available

User composes email in Gmail → clicks Check button (red, replaces Send) → modal popup appears showing all recipients grouped by domain with color-coded TO/CC/BCC labels → user clicks each gray domain group to verify and turn green → when all groups are confirmed green, original Send/Send & Archive buttons appear → user clicks Send to deliver the email

Target users: Japanese business professionals sending emails to customers / Users concerned about email mis-sending in corporate/enterprise environments / Gmail users who need an extra verification step before sending important emails

ChEx.js is a utility library (~29KB) used for DOM observation; full audit not needed for login/paid decisions as it contains no auth or billing logic
No background script exists - the extension is purely content-script based with minimal attack surface

Monetization

No paid features detected

No payment, subscription, license, or upgrade mechanisms exist in the code. All keyword matches for 'paid', 'pro', 'license' are false positives from jQuery library internals (.prop() method calls, jQuery MIT license comments). No billing APIs, no premium feature gating, no payment UI.

Confidence: 98
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension is a pure content script injected into Gmail pages. It has no authentication UI, no login API calls, no user account system, and no external service communication. It simply modifies the Gmail compose UI. The only 'login' involved is the user's existing Gmail session, which is the destination service's login, not the extension's.

Permission risk

Low-risk permissions

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

未命中敏感权限或广域站点访问规则

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Host access