Send Mass Mail + HTML inserter for Gmail icon

Send Mass Mail + HTML inserter for Gmail

by Semalt LLC · mailbrother.com · Communication
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

A Gmail Extension

Users
7,000
−1,000 in 30 days
Rating
4.7 / 5
unchanged in 30 days
Ratings
38
0 in 30 days
Store rank
#12K
#9,987 among extensions
Version
2.2.7
updated 15 Sep 2026

Users

monthly, 3 years
2,0006,00010KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 7,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
10222434Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 38 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Send Mass Mail + HTML inserter for Gmail

✉️ Send Mass Mail + HTML Inserter for Gmail — mail merge, follow-ups and reply tracking inside Gmail COMPOSE campaigns right inside Gmail Click “Compose”, write your email as usual, add recipients from Google Sheets, a pasted list or a CSV — and press “Send Mass” next to Gmail’s Send. Everyone gets an individual email from your own address. No new app to learn, no copying your contacts anywhere. NEW: follow-ups if no reply Add up to three follow-up steps and MailBrother sends them in the same thread to everyone who has not replied. The sequence stops on a reply, an unsubscribe, a bounce or a click. AI drafts the follow-up text from your first email. NEW: real replies, sorted for you Replies to your campaigns are detected and sorted as interested, question, not now, not interested or “please stop”. Labels appear in Gmail, and one click creates an AI-drafted answer as a Gmail draft you only have to send. CHECK before you send A pre-flight window shows a checklist (missing subject, empty tags, link shorteners, spam signals), a spam score, the email personalized for your first recipients, and a “Send test to me” button. Sixty seconds after Send Mass you can still cancel. PERSONALIZE at scale Merge any column from Google Sheets or CSV with {FirstName}, {Company} and fallbacks like {FirstName|there}; conditional blocks {if Plan=Pro}…{/if}; “Enrich recipients” adds the company name, description and a personal opening line from the email domain. MEASURE what matters Opens, clicks, bounces, unsubscribes and real replies per recipient; clicked links, mail clients and countries; the best hour to send from your own history; anonymous MailBrother averages for comparison; a weekly report in your inbox; export to PDF, CSV or TXT; results written back into your Google Sheet. STAY OUT OF SPAM One-click unsubscribe headers (Gmail shows its own Unsubscribe button), SPF/DKIM/DMARC check with a fix guide, suppression list that skips unsubscribed, bounced and “stop” addresses in every campaign, address verification, auto-pause on bounce spikes or complaints, gradual warm-up for new accounts, a plain-text version added to HTML emails. AI HELPERS, where you write ✅ Subject ideas in your style ✅ Rewrite warmer, shorter, more formal; cut or expand ✅ Translate into 16 languages, tags kept ✅ Build an HTML email from a description ✅ Spam-risk review with concrete edits ✅ Campaign summary in plain words Why choose Send Mass Mail + HTML Inserter for Gmail: ✅ Individual emails to thousands of recipients from your own Gmail ✅ Follow-up sequences and reply tracking, not just opens ✅ Google Sheets, CSV and pasted lists with mail merge tags ✅ Pre-flight check, test email and 60-second Undo ✅ Templates, HTML insert, send-as aliases, scheduling, split sending within Gmail limits ✅ Suppression list, unsubscribe headers, domain authentication check ✅ Familiar Gmail interface, nothing to install on the server side PLANS Free: all features, 50 recipients a day, 40 AI requests a day, a small “Sent with MailBrother” signature. Individual $9/month: full Gmail limit (about 450 a day on @gmail.com, 1,800 on Google Workspace), 300 AI requests a day, no signature. Team from $7 per user. PRIVACY MailBrother sends only the campaigns you start, from your own Gmail. It reads your inbox only to detect bounces and replies to your own campaigns. Campaign reports store recipient address, send time and open/click/bounce/reply/unsubscribe status. Details: https://mailbrother.com/privacy Docs: https://mailbrother.com/documentation · Support: support@mailbrother.com

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days−1,000−12.5%00.00
6 months−1,000−12.5%00.00
1 year−3,000−30.0%−10.00

Chrome Web Store search rankings

Where Send Mass Mail + HTML inserter for Gmail appears when people search the store, with the 30 day change
Search phrasePosition30 days
mail#7+13
html#30+20
gmail#86new

Version history

13 versions recorded
2.2.715 Sep 2026
2.2.613 Sep 2026
2.2.510 Sep 2026
2.2.37 Oct 2025
2.2.217 Dec 2024
2.2.119 Mar 2024
2.2.018 Mar 2024
2.1.330 Nov 2022

Details

Category
Communication
First seen
14 Nov 2019
Size
455 KB
Languages
en
Pricing
Free
Privacy policy
mailbrother.com
Support
mailbrother.com
Extension ID
obngoldljmnnpggbekneikaohbeflbee

Permissions and risk

Moderate riskimpact 2, likelihood 2
Site access
https://mail.google.com/*

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