GMass: Powerful mail merge for Gmail
A powerful mass email and mail merge system for Gmail.
GMass: Mail Merge for Gmail Extension
GMass: Powerful mail merge for Gmail is a Chrome extension that transforms Gmail into a cold outreach, email marketing, and mail merge platform. It offers features such as personalized mass email, inbox rotation, follow-up automation, spam testing, triggered emails, and more, all within Gmail. With GMass, users can send unlimited email campaigns, personalize each message, track opens and clicks, verify email addresses, and automate outreach based on recipient actions.
Extension stats
Risk impact: Low risk impact 
Risk likelihood:
Manifest version: 3
Size: 317.44K
Email: su*****@gmass.zendesk.com
URLs: Website ,Privacy policy
Ranking
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Extension summary
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!
Key features
Send cold email and email marketing messages to thousands of addresses
Unlimited contacts, campaigns, AND emails
Mail merge personalization with data from Google Sheets
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Easy to use and navigate
- Time-saving features for bulk emails
- Effective email tracking and reporting
- Integration with Google Sheets and Gmail
- Good customer support
Cons
- Inconsistent customer support experiences
- Issues with subscription upgrade affecting functionality
- Concerns about data deletion requests being ignored
Most mentioned
- User-friendly interface
- Efficiency in managing bulk email campaigns
- Live analytics for email performance
- Affordable compared to competitors
- Ability to personalize emails
User reviews
GMASS is my go to for smaller projects and outreach that aren't large enough to use a full on email platform/crm for. Its consistent and has all the functionality you need to get basic analytics, create short flows, and automate follow ups. 10/10 recommend.
by 
Orion Brown, 2025-01-22
Orion Brown, 2025-01-22After working with GMASS for couple of days, I had the email template and email lists setup, now, all that's left is, everyday, I sit down in the morning and in 12 clicks, send out 500 emails. That's flippin Fantastic! :)
by 
Heather Hill, 2025-01-21
Heather Hill, 2025-01-21Gmass has helped increase the deliverability rate for our campaigns.
by 
Andy Stefan, 2025-01-21
Andy Stefan, 2025-01-21Extension safety
Risk impact
GMass: Powerful mail merge for Gmail requires very minimum permissions.
Risk likelihood
GMass: Powerful mail merge for Gmail has earned a good reputation and can be trusted.
Upgrade to see risk analysis details
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