GMass: Powerful mail merge for Gmail icon

GMass: Powerful mail merge for Gmail

Extension Actions

CRX ID
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Status
  • Extension status: Featured
Description from extension meta

A powerful mass email and mail merge system for Gmail.

Image from store
GMass: Powerful mail merge for Gmail
Description from store

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.

Latest reviews

Anonymous
I’ve been using Gmass for job applications and follow-ups, and I really like its acknowledgment feature it instantly shows when the HR opened my email, clicked a link, or didn’t engage at all. This helps me understand which applications are being seen and which need a follow-up. A simple but super-effective tool for anyone doing outreach or applying to multiple roles.
Anonymous
Love the GMass tool. Its very simple to use and a great way to create mail merges and campaign. It contains good tools to edit and include fields from a spreadsheet or other sources and is extremely easy! Its my preferred tool. Unfortunately I only have a need to send the merges 4x a year otherwise I would be using this on a regular basis.
Anonymous
Gmass is saving us $3200 a month! It is a revolutionary game changer and enables us to run 1000 email campaigns within minutes. We continue to respect MailChimp and ConstantContact but both of these companies not only charge an enormous amount per month, they can be compared to cutting down a flower with a large electric saw. Any job that only needs several hundred emails sent out, should use Gmass which is quick and size appropriate for the task.
Anonymous
Personally recommended
Anonymous
I am Senior Business Development Manager with Capital Numbers and I got to know about the G-Mass wherein i was looking for a solutions for sending the emails . I am clear with spamming asa critical point while sharing the mass email . I liked G- Mass becauuse i can simply leverage it for sending 50 Customized emails every day and paid plan also helps me to unlock the potential of tools , i am new and will be still exploring it. I have one centralized dashboard i can see the open rates and call effectively to my prospect. I would recommend everyone to use it. Must have marketing capabilites wherein you cannot bank on thrid party tools for leveraging their ecosystem.
Anonymous
GMass is just what we needed to help get our information to the community it would benefit most. Thanks for the easy-to-use program! I like how you can set auto-follows and the integration with Google Sheets makes it super simple.
Anonymous
excellent tool !! I reccomend
Anonymous
GMass makes mail merge incredibly simple and reliable. I was able to personalize messages at scale directly from Gmail without any clunky setup or learning curve. The automation features are powerful, delivery rates have been excellent, and the whole workflow feels intuitive. Highly recommend for anyone doing outreach or email campaigns.
Anonymous
Gmass is so easy to use, I would recommend it to anyone who is doing ongoing outreach!
Anonymous
This extension helps a bunch with email outreach and marketing. Definitely essential tool for startups in sales!
Anonymous
amazing extension, makes email marketing a lot easier
Anonymous
I started using GMass recently and I’m impressed by how easy it is to send personalized emails directly from Gmail. The interface is simple and works smoothly with my existing workflow. It took me a bit of time to understand all the features, but once set up, it saves a lot of time. Great tool for small businesses or freelancers who want to manage campaigns without leaving Gmail.
Anonymous
I use GMASS since some months, it's incredible. I can sent message easily, we can verify each mail, we can schedule them. Good tool!
Anonymous
Really useful plugin!
Anonymous
I have been using the GMass Mail extension for some time now, and I have encountered a significant issue with its email tracking feature. When I send an email and check the Sent folder, the extension inaccurately shows that the recipient has opened the email. However, I am aware that I am the one who has opened the email, not the recipient, which leads me to believe the tracking is malfunctioning. This discrepancy in tracking not only provides misleading data, but it also undermines the reliability of the tool for monitoring email engagement. Despite following the instructions for setup, the GMass tracking extension fails to accurately count email opens, which is a critical function for assessing the effectiveness of outreach. I hope the developers address this issue in future updates to improve the functionality and accuracy of the tracking feature.
Anonymous
I would like to express a few points from my user experience: I wasn’t clearly warned about the trial period ending and the subscription charge, which came unexpectedly. The subscription price feels relatively high for an individual user. I decided to write these reviews mainly because GMass emailed me with the refund offer, and I wish to provide honest feedback. Additionally, I noticed that when a CSV file includes multiple email addresses in one cell separated by “;”, GMass cannot properly recognize them. I had to manually adjust the file so that each address appears in a separate row for the campaign to work correctly.
Anonymous
The auto follow-up feature hangs after 9 stages and slows the entire system. I have to wait long for it to return to normal. Not working as claimed, very frustrating. I requested a full Excel report showing all sent emails, recipients, status, and follow-up details with datewise data. Sent many emails but no reply from support. Very poor response and service.
Anonymous
I just started using GMass and as someone who does not have a marketing background this tool was easy to use. I look forward to growth on my start with GMass!
Anonymous
I have been using GMASS Services Since Many Years working with another company for Email Marketing, Just Recommended to our New Company to go for GMASS services which is easy to use and getting great results...Thanks to GMASS..
Anonymous
Just got started with GMass to handle real-estate outreach. Setup was easy and everything integrated cleanly with Gmail
Anonymous
I had an excellent experience with GMASS! Their team is professional, responsive, and truly dedicated to customer satisfaction.
Anonymous
Easy to use and great tool
Anonymous
Wonderful tool, always love this product.
Anonymous
Excellent option to send bulk mail. Easy to use. Stats are great.
Anonymous
Amazing application. Very useful for marketing
Anonymous
Great service - really makes mass email campaigns easy.
Anonymous
Very good and helpful application for using mass mail,
Anonymous
I just started using GMass and as someone who does not have a marketing background this tool was easy to use. I look forward to building on my start with GMass!
Anonymous
Function worked seamlessly and intuitively.
Anonymous
Love it! I was up and running in minutes!
Anonymous
This tool is amazing! So easy to use.
Anonymous
Loving the Data I get from GMass
Anonymous
So far, it's been the perfect tool for email campaigns. Simple and easy to use.
Anonymous
Honestly, I love how simple this is. It's integrated direclty into gmail. It has saved me so many hours. SO I am happy to be paying. It makes my life easier and I have personally received positive ROI by using it. It's pretty easy to use
Anonymous
Straightforward and simple instructions. There are some additional features behind paywalls that I missed on the sign up. looks like having to pay more for additonal services. As it stands I sent 55 emails and got 2 responses becuase of the unique email and coming from gmail. (dealing with unsubscribe marketing emails) This works. thanks!
Anonymous
Honestly, it’s a very straightforward extension. I love the guide—it was super helpful. I also like the option to preselect templates and manually choose Google Sheets. It would be helpful to make it clear that the sheet must be attached to the email’s Google Drive, but overall, it was a great experience. I also loved the feature for tracking clicks and openings!
Anonymous
A Game-Changer for Mass Emailing in Gmail! GMass has completely streamlined our mass email efforts. It makes sending bulk emails straightforward and, most importantly, keeps them feeling personal. The mail merge feature is fantastic—it's super easy to insert custom fields like names, phone numbers, and any other data from my contact list. Highly recommend this tool!
Anonymous
GMass is easy to use. It doesn't escape spam filters problems, but that's probably not GMass' fault. Seems worth it if you send lots of mass emails regularly.
Anonymous
I've used this tool before, and it's by far the easiest mass mailing tool I've tried that still offers plenty of powerful features. I do hope the developers stay careful not to overload it with too many options as they continue improving it. The price is fair, and I appreciate that when I don’t have leads to send, I can pause my subscription easily. Unsubscribing and resubscribing only takes one click, and it’s great that all my data is kept intact when I return. That’s a really thoughtful service.
Anonymous
I have been using GMass for over 6 years and I cannot rave about it enough. A must for anyone in the PR/marketing field. It is easy to use and cuts the job time by so much. I think anyone in PR knows the auto-follow up feature is a god-send. Definitely worth it!
Anonymous
its very useful tool for bulk email
Anonymous
Super effective mail merge too that tackles my most important challenges of 1) having fallback variables 2) sending large merges at a healthy pace for my outbox and 3) suppressing bounced emails.
Anonymous
I can't say enough good things about GMass. It just works! I was kicking around idea about how I could automate emails with ChatGPT and it gave me several options. After trying several, including writing my own python scripts I've gone with GMass. The functionality, and reporting was exactly what I needed.
Anonymous
best emailing tool I'm using with my gmail...Love how easy it is to connect and start the campaigns.
Anonymous
Easy mass email tool
Anonymous
GMass is the best tool for sending lots of emails or single emails. Its user interface isn't great, and it takes time to learn how it works. Other than that, GMass is awesome. The support is fantastic, and I recommend it.
Anonymous
Good
Anonymous
this is just good, i love it.
Anonymous
Amazing tool to send cold emails for job hunting without spaming and keeping the personalisation in place.
Anonymous
GMass is the easiest mass email tool to use, especially for their price. I've sent over 10k emails so far and deliverability seems to be really solid. Perfect for anyone just getting started with cold email outreach.