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外部送信チェック for Gmail

Chrome extension by satori.factory.2024 · Productivity · Communication

  • Trader

A Chrome extension in Productivity · Communication with 136 users, barely installed. Audience over the last 30 days: -3.

Specific sites only: 1 match pattern.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
136 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 30 days
-3
Version
1.0.1
Updated in the store
2026-05-19
Published
2026-05-19
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
-3 since 04.10
131-139 · 15 readings
  1. 2026-10-04139
  2. 2026-10-08138
  3. 2026-10-09137
  4. 2026-10-10138
  5. 2026-10-13132
  6. 2026-10-16137
  7. 2026-10-18131
  8. 2026-10-19134
  9. 2026-10-21136
  10. 2026-10-24133
  11. 2026-10-25135
  12. 2026-10-28132
  13. 2026-10-29138
  14. 2026-11-01136
  15. 2026-11-03136
Users
-1 since 01.09
119-144 · 28 readings
  1. 2026-09-01137
  2. 2026-09-02144
  3. 2026-09-03139
  4. 2026-09-05138
  5. 2026-09-06137
  6. 2026-09-07136
  7. 2026-09-08137
  8. 2026-09-10136
  9. 2026-09-13135
  10. 2026-09-15136
  11. 2026-09-17128
  12. 2026-09-25119
  13. 2026-09-27120
  14. 2026-10-04139
  15. 2026-10-08138
  16. 2026-10-09137
  17. 2026-10-10138
  18. 2026-10-13132
  19. 2026-10-16137
  20. 2026-10-18131
  21. 2026-10-19134
  22. 2026-10-21136
  23. 2026-10-24133
  24. 2026-10-25135
  25. 2026-10-28132
  26. 2026-10-29138
  27. 2026-11-01136
  28. 2026-11-03136

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://mail.google.com/*
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

satori.factory.2024 publishes 7 listings we track, 760 users between them.

  1. YouTube Transcript & AI Summary satori.factory.2024 · Lifestyle · Entertainment · published 2026-01-12 270 users ★ 5.0
  2. Outlook Copilot Reply Assistant with M365 Copilot satori.factory.2024 · Productivity · Tools · published 2025-11-11 116 users
  3. Google Search Language & UA Switcher satori.factory.2024 · Make Chrome Yours · Functionality · published 2026-02-09 93 users ★ 5.0
Show 3 more from this publisher
  1. Send to ChatGPT satori.factory.2024 · Productivity · Tools · published 2025-10-27 62 users ★ 5.0
  2. AI Auto Reply satori.factory.2024 · Productivity · Tools · published 2026-03-29 61 users
  3. Scheduling Agent satori.factory.2024 · Productivity · Communication · published 2026-03-09 22 users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. SendShield: External Email Confirmation Describes nearly the same job, smaller audience 125 users
  2. GMailSend Address Checker - 誤送信防止 - Describes nearly the same job, with a large installed audience 100k users ★ 4.4
  3. Smart Gmail External Sender Alert Describes nearly the same job, smaller audience 6 users
  4. メール送信前チェッカー Describes nearly the same job, smaller audience 135 users
  5. Ayato Gmail Protector Describes nearly the same job, smaller audience 14 users (last published figure)

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/klgffcnojdcbjlnapbmophddemppjeig/badge.svg)](https://extops.dev/extensions/klgffcnojdcbjlnapbmophddemppjeig)

HTML

<a href="https://extops.dev/extensions/klgffcnojdcbjlnapbmophddemppjeig"><img src="https://extops.dev/extensions/klgffcnojdcbjlnapbmophddemppjeig/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built