A powerful mass email and mail merge system for Gmail.

Latest Version

Version
6.0.16
Update
December 8, 2024
Size
310KiB
Developer
www.gmass.co
Category
Users
300,000+
Rating
4.7867 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
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Permissions
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GMass: Powerful mail merge for Gmail Extension

The easiest way to transform Gmail into a cold outreach, email marketing, and mail merge platform.

** Join the almost 400,000 others who’ve given us an average of 4.8 out of 5 stars **

No credit card required + send 50 emails per day free during your free trial!

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Key features
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* Send cold email and email marketing messages to thousands of addresses

* Unlimited contacts, campaigns, AND emails

* Mail merge personalization with data from Google Sheets

* Personalize each mass email (even send personalized images and attachments)

* With GMass MultiSend's inbox rotation feature, you can distribute your campaign across multiple accounts!

* Hit the inbox, not the spam folder. 99% of GMass users report the best deliverability they’ve ever had.

* Spam Solver - test messages before you send to find spam rates, then use suggested tweaks to improve

* Send auto follow-ups based on opens, clicks, and replies. NEW - Send any stage of follow-ups on demand.

* ChatGPT campaign creation — generate an entire email campaign, follow-ups, and GMass settings by typing in a prompt

* Automatically skip sending emails and automations on holidays, and choose custom days of the week to send/not send a campaign

* Send triggered emails that go out automatically when a recipient opens or clicks — reach your prospects when you know they're in their inbox

* Automate your outreach by automatically sending to new contacts in your Sheet using GMass's recurring campaigns

* Connect your CRM or other apps using the GMass API or Zapier

* Track opens, clicks, and replies — with instant reply and bounce detection. No more delays; see replies and bounces in your report in a matter of seconds.

* Free email verification — verify email addresses before you send your campaigns

* Set DKIM through GMass for authenticated sending with a SMTP server.

* Help with the new Google/Yahoo bulk sender requirements is here - https://www.gmass.co/blog/gmail-bulk-sender-guidelines/. We've also created a one-of-a-kind system to help users with free Gmail addresses sending campaigns via a SMTP server pass DMARC - https://www.gmass.co/blog/gmail-smtp-dmarc/

* Emails can be sent as replies to the last conversation you had with each recipient

* Unsubscribe and bounce management to automatically process unsubs/bounces, suppress future messages to those addresses, and more.

* Hundreds of other features: Schedule emails, throttle sending speed, custom tracking links with SSL, A/B testing, spintax for varying up your copy, quick email polls with custom landing pages, add a countdown timer to emails, drip campaigns, HTML editing, use Gmail's built-in layouts for email marketing, 1-click replies, reusable templates, one-click social media sharing of campaign results, and so much more

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Keep up with GMass
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Website: https://www.gmass.co

What makes GMass different/better? https://www.gmass.co/blog/what-makes-gmass-better/

Quickstart guide: https://www.gmass.co/quickstart-guide

Blog: https://www.gmass.co/blog

Twitter: https://twitter.com/GMassForGmail and https://twitter.com/PartTimeSnob

YouTube: https://www.youtube.com/gmass/

Support: https://gmass.co/g/support

Latest updates: https://www.gmass.co/updates

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How does GMass compare to other Gmail extensions?
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Mixmax: cool extension, but you have to use its external web portal to send campaigns. With GMass, the magic happens inside Gmail, using just the red GMass button.

Yesware: similar to Mixmax, you can't send campaigns inside Gmail. You have to use their web interface.

Plus, both Mixmax and Yesware are more expensive than GMass.

Mailtrack and Snov.io: Lets you track individual emails, but with GMass, you can eliminate Mailtrack and Snov.io because GMass can track both individual emails and campaign emails. Use the GMass button on both one-on-one emails and campaigns.

Copper: Good CRM system, but not meant for sending email campaigns. Same for
Gmelius and Streak CRM.

Lastly, GMass works seamlessly with Grammarly to ensure your campaigns contain perfect prose and are error-free.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "GMass: Powerful mail merge for Gmail", "version": "6.0.16", "description": "A powerful mass email and mail merge system for Gmail.", "short_name": "GMass", "icons": { "16": "GMass16.png", "48": "GMass48.png", "128": "GMass128.png" }, "manifest_version": 3, "content_scripts": [ { "world": "MAIN", "js": [ "gmassloaderlocal.js" ], "matches": [ "http://mail.google.com/*", "https://mail.google.com/*", "https://inbox.google.com/*", "http://inbox.google.com/*" ], "run_at": "document_end" }, { "js": [ "jquery.js", "gmass-globals.js", "gmass-DEPLOY-MANIFESTV3.js", "gmasssdk.js", "jquery.bpopup.min.js", "select2.full.js", "selectize.js", "walkthrough/walkthrough.js" ], "css": [ "Gmass.css", "select2.css", "selectize.css", "custom.css" ], "matches": [ "http://mail.google.com/*", "https://mail.google.com/*", "https://inbox.google.com/*", "http://inbox.google.com/*" ], "run_at": "document_end" } ], "background": { "service_worker": "background_service.js" }}
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User reviews

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Greg Johnson (ID: 0000004337355f39) Voted 5 ★ - Updated 07/17/2024 Was having deliverability issues with a list of around 80 emails and this solved all my problems and provided tracking which I'm thrilled about. Would recommend.

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Sam Simione (ID: 000000ecfca29aa4) Voted 5 ★ - Updated 05/03/2024 GMASS is a very powerful and easy to use email marketing tool. It is more effective than third party mail merge services. I've used the others and I appreciate the power and versatility of the GMASS platform. GMASS has better controls, editing, analytical and reporting functionality than the other services and is more convenient to use. I highly recommend GMASS! Thank you Ajay! Bravo!

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C9STII “C9STIIBEATZ” BEATZ (ID: 0000008f78807418) Voted 1 ★ - Updated 03/01/2024 Used it because its the only app/addon where you can send mails to different emails without having to put them in BCC. The Free Trial was not really good because you were limited to 50 Mails a day. I would never pay money for only 50 mails a day thats disrespect in my opinion. I will uninstall and never use it again.

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Rabbi Aryeh Schwartz (ID: 00000083f6d85c96) Voted 1 ★ - Updated 12/29/2023 Gmass misrepresented its capabilities. It claims to be able to break Google's limits when in truth it cannot. In order to actually surpass Google's sending limits, you would need the use of 3rd party software. It did not word.

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Stop Foreclosure (ID: 000000eb01d22d48) Voted 5 ★ - Updated 12/24/2023 Today is 12/23/2023 and GMass is still the best I've used. I can see what bounced, how many opened and it's fast. I have used other CRMs they don't allow purchased lists or large files. The ones I have tried who do, simply don't work or send e-mails as promised and you can't send animated GIF. GMass allows me to send the animated e-mails! wonderful product and much less expensive than the others that simply don't meet my needs. I sent myself an e-mail with it and it came to my inbox, I don't know if the others are making it to the inboxes, it sure would be good to know.