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MailFlow Pro: Mail Merge Gmail Outlook

Chrome extension by ExtensionZ · Productivity · Workflow

A Chrome extension in Productivity · Workflow with 85 users, barely installed.

Specific sites only: 12 match patterns.

What the developer says, and 5 screenshots

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

Users
85
Rating
5.0 (1 ratings)
Users, last 15 days
-4
Rating, last 30 days
Not watched long enough to say
Version
0.4.3
Updated in the store
2026-06-02
Published
2024-10-21
Manifest
V3
Browser access
4 permissions, 12 site patterns

How it has moved

Users
-4 since 01.09
85-93 · 10 readings
  1. 2026-09-0189
  2. 2026-09-0290
  3. 2026-09-0392
  4. 2026-09-0593
  5. 2026-09-0688
  6. 2026-09-0790
  7. 2026-09-0891
  8. 2026-09-1090
  9. 2026-09-1391
  10. 2026-09-1585
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-15reviews1rating5.00
Users
-4 since 01.09
85-93 · 10 readings
  1. 2026-09-0189
  2. 2026-09-0290
  3. 2026-09-0392
  4. 2026-09-0593
  5. 2026-09-0688
  6. 2026-09-0790
  7. 2026-09-0891
  8. 2026-09-1090
  9. 2026-09-1391
  10. 2026-09-1585
Rating
unchanged since 01.09
reviewsrating 5.00 · 10 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-05reviews1rating5.00
  5. 2026-09-06reviews1rating5.00
  6. 2026-09-07reviews1rating5.00
  7. 2026-09-08reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-15reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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: 12 match patterns.

  • https://mail.google.com/*
  • https://gmail.googleapis.com/gmail/v1/users/me/messages/send
  • https://oauth2.googleapis.com/token
Show the remaining 9
  • https://openidconnect.googleapis.com/v1/userinfo
  • https://graph.microsoft.com/v1.0/me*
  • https://login.microsoftonline.com/*/oauth2/v2.0/token
  • https://outlook.office.com/mail/*
  • https://outlook.office.com/owa/service.svc*
  • https://outlook.cloud.microsoft/mail/*
  • https://outlook.cloud.microsoft/owa/service.svc*
  • https://outlook.live.com/mail/*
  • https://outlook.live.com/owa/service.svc*
  • Sign you in with a Google account identity
  • Run its own code on the pages it can access scripting
  • Open a panel beside the page sidePanel
Show the remaining 1
  • 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

ExtensionZ publishes 7 listings we track, 2k users between them.

  1. Extension Z Aprendiz ExtensionZ · Productivity · Workflow · published 2024-04-19 968 users ★ 4.9
  2. Extension Z ExtensionZ · Productivity · Workflow · published 2024-04-13 917 users ★ 4.8
  3. ChatGPT Tool Voice ExtensionZ · Productivity · Workflow · published 2023-02-20 171 users
Show 3 more from this publisher
  1. Tuya Desk ExtensionZ · Productivity · Workflow · published 2026-04-11 105 users
  2. WA Pro Tools for WhatsApp Web ExtensionZ · Productivity · Workflow · published 2024-10-21 14 users ★ 5.0
  3. Utils AWS ExtensionZ · Productivity · Developer · published 2023-04-28 6 users ★ 5.0

Like this one

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

  1. OutreachMerge — Mail Merge for Outlook & Microsoft 365 Describes nearly the same job, smaller audience 28 users
  2. MailMerge Pro Describes nearly the same job, smaller audience 16 users ★ 5.0
  3. MergeMail Describes nearly the same job, with an established audience 30k users ★ 4.9
  4. MailWorker Describes nearly the same job, smaller audience 68 users ★ 5.0
  5. MergeWriter Describes nearly the same job, smaller audience 32 users

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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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.