Many users are concerned about the privacy of their email marketing lists and whether GMass stores their email addresses and the contents of email messages, and whether any of this data is shared with third parties. The information below is meant to address these concerns.
Overview of how GMass works
GMass works by transferring data to and from your Gmail account. Most of this data transfer occurs via numeric identifiers specific to Gmail and the Gmail API. In some cases, email addresses are transferred from the GMass server back to the Gmail interface, but in a secure manner over SSL. Gmail does not allow a third party integration like GMass to connect to account data without the use of SSL.
How are your email lists used?
In order to track opens, clicks, and provide unsubscribe functionality via the GMass unsubscribe link, our database does store the email addresses to which you are sending email. This data is stored in a database, secured by two layers of firewalls, and is never shared with any third parties. GMass is similar in this regard to well-known email marketing systems like MailChimp, where storage of email addresses is required to provide standard email marketing features.
Does GMass store the content of your email message?
No. Unlike a traditional email marketing service like MailChimp, the GMass database does not store the contents of your email marketing campaigns, except for the From Address used for each campaign.
We store the From Address because in Gmail, multiple From Addresses can be authorized for use in a single Gmail account, and by storing the From Address, we are better able to support users by being able to look up their GMass account when they tell us they sent a campaign “from” a certain address.
We do not store the content (Subject / Message) of email campaigns, but the content does pass through our server ephemerally. This is required in order to add the mechanisms to an email message that allows GMass to track opens and clicks on individual email messages. This process happens in microseconds and the content of an email message does not live on our server beyond that.
Does GMass share any of your email list information with third parties?
We may share your email list information with third-party service providers, including advertising platforms such as Google, to assist in delivering targeted advertising campaigns. These third parties are required to use the information only for these purposes and in accordance with applicable data protection laws. We do not sell or trade your email information for any other purposes.
Policy for Mobile Numbers
No mobile information will be shared with third parties/affiliates for marketing/promotional purposes. All the above categories exclude text messaging originator opt-in data and consent; this information will not be shared with any third parties.
Data Deletion Requests
In compliance with GDPR, any user may request that his/her data be deleted from our servers. To make such a request send an email to datadeletion@wordzen.com from the GMass account whose data you wish to be deleted.
Email Warmup
GMass does not provide email warming services for Google accounts.
GMass is the only tool for marketing emails, cold emails, and mail merge — all inside Gmail. Tons of power but easy to learn and use.
TRY GMASS FOR FREE
Download Chrome extension - 30 second install!
No credit card required
Ajay is the founder of GMass and has been developing email sending software for 20 years.
wish it was possible to have a partial functionality without giving full permission to the app to read everything in my inbox…
well i am buying some mass emails addresses by the millions and i want to know how to use gmass to send mass emails to these emailers. can i have some information about how to proceed when i have an account and these emails? i need some details instructions. can anyone send me details how they do this so i can do same. thanks
this is my first comment????/???????????????well i am buying some mass emails addresses by the millions and i want to know how to use gmass to send mass emails to these emailers. can i have some information about how to proceed when i have an account and these emails? i need some details instructions. can anyone send me details how they do this so i can do same. thanks
Its good..
Can the recipient email addresses stored on your servers be deleted? Is this data automatically deleted if the subscription account is discontinued? Can GMASS confirm deletion of recipient email address data?
+1 – How long do you keep this data?
From the Privacy Information page: (I had the same question)
We store the From Address because in Gmail, multiple From Addresses can be authorized for use in a single Gmail account, and by storing the From Address, we are better able to support users by being able to look up their GMass account when they tell us they sent a campaign “from” a certain address.
We do not store the content (Subject / Message) of email campaigns, but the content does pass through our server ephemerally. This is required in order to add the mechanisms to an email message that allows GMass to track opens and clicks on individual email messages. This process happens in microseconds and the content of an email message does not live on our server beyond that.
so fantastic
Still concerned about the security of the email address data exchanged. In reading this thread, I see the same question appear from a “Mass Mailer” who is asking if GMass can be used for purchased prospecting email list if included within any Gmail account. Still looking for the answer.
Yes or no and equally, what is the capability of GMass to inform subscribers when someone is hitting their list through the use of someone else on your system? Not asking who that someone or corp is but being in sales it would be invaluable info to know.
Hi John,
Any mailing list you use for your GMass account is strictly for your account and is not shared. Everyone would be responsible for the upkeep and security of their own email list. GMass does not share or sell data.
Although we do receive requests, we are a software company in the business of creating Gmail plugins and not in the business of selling or renting data.
Have or would you consider renting or selling this data if circumstance changed or required you to? If, if you did do where does that leave user?
I send out mass emails to 3 different groups of over 100 people from 3 completely different email addresses. Do I need to pay for GMass 3 times to utilize this service for each email I send from? I would ideally like to only have to pay once for this service, which I am hoping will actually solve my problem of having my emails bouncing back in gmail as spam.
Hi Wang,
G Mass subscriptions are per Gmail or G Suite account, and GMass doesn’t care what alias addresses are connected to a single account. So if you have all of your aliases on the various domains set up in a single Gmail account, and that single Gmail account is subscribed to GMass, then you are able to send from all of those different alias addresses with a single GMass subscription.
ITS AMAZING,I LOVE IT
Gmass is a great tool for automation get the middle tier. It definitely works.
Thanks for the kind words! We appreciate it!
Amazing…..will recommend to many
very interesting tool and …..will recommend to many
Hi, could you let me know where your servers are located? Do you have any in the EU?
Thanks
Hi Andy,
Our servers are hosted on AWS-US.
Is Gmas HIPAA compliant?
GMass Privacy Information: What data does our server store?
Franchesca Spyer
Kapoeasweg 42
1043 Ad
Amsterdam
NH
Netherlands
Wish you had a phone number posted so I could dispute being charged for something I never ordered.
No phone number, no email … seems fishy to me.
Hello
I work in the forex niche, can I use your tool to send bulk emails (Cold Emails)?
Please send answer to my email.
Thanks.
Regarding your Privacy policy, would you mind responding on following questions:
1. What type of encryption is used? E.g. AES-256
2. What protocol do you use for data in transit and version? E.g. TLS 1.2
3. Do you allow SSO?
4. Any cloud services?
Hi
By way of an introduction, I run half a dozen affiliate vape and cbd blogs. I currently have a colab with medical doctors, dietitians and other experts who help me to review products and medically verify the articles.
I would like to put the following proposal to you.
I would feature gmass.co inside an article on each one of my cbd/vape blogs.
In return, I would like to publish a couple of articles of your choice, written by our medical professionals, on your blog.
Please let me know whether this is of interest to you. In your reply, please copy in our website admin at info@nutracetix.com
I look forward to hearing from you
Kind regards
Mireya Holm
Hi
I have found you on Twitter and thought I would reach out to you.
By way of an introduction, I run half a dozen affiliate blogs. I currently have a colab with medical doctors, dietitians and other experts who help me to review products and medically verify the articles.
I am writing to you to see whether you would be interested in the following collaboration.
I would feature gmass.co inside an article on each one of my blogs.
In return, I would like to publish a couple of articles of your choice, written by our medical professionals, on your blog.
Please let me know whether this is of interest to you. In your reply, please copy in our website admin at info@nutracetix.com
I look forward to hearing from you
Kind regards
Nina Rehfisch
Hi,
I came across https://www.gmass.co/blog/prospecting-email and noticed your impressive business approach. I believe this free webinar could be a valuable resource for you. It’s been instrumental in enhancing my business strategies. Take a moment to explore it here: https://cuttingedgebusiness.biz/fasttrack
All the best,
Cutting Edge Business
I saw your google, its not, well its not right. Like where google show customers about your business. I don’t want to impose, but there are a couple things that are just not right, may I tell you what they are?
Quick heads up
It’s been a while since our last conversation, but I just got emailed a slam piece online about gmass.co and immediately needed to email you guys to confirm this article.
It looks like there’s some rumors circulating that could be potentially damaging.
Understanding how easily stories can get out of hand and wishing not you to be taken by surprise, I felt the need to notify you.
Here’s the source of the info:
https://ibit.ly/udG0X
I’m hoping it’s all a simple confusion, but it seemed prudent you should know!
Best wishes,
Edgar
hey, jsut a warning
We haven’t spoken in a while, but I just got emailed a warning article online about gmass.co and thought it was important to reach out to validate this review.
It seems like there’s some negative press that could be potentially damaging.
Being aware of how easily stories can get out of hand and not wanting you to be taken by surprise, I decided to warn you.
Here’s the source of the info:
https://ibit.ly/YF92L
I’m hoping it’s all a mix-up, but it seemed prudent you should know!
Best wishes,
Rod
Good day,
I hope this email finds you well. I wanted to let you know about our new BANGE backpacks and sling bags that just released.
The bags are waterproof and anti-theft, and have a built-in USB cable that can recharge your phone while you’re on the go.
Both bags are made of durable and high-quality materials, and are perfect for everyday use or travel.
Order yours now at 50% OFF with FREE Shipping: http://bangeshop.com
Sincerely,
Marvin
Quamell Rovde
I noticed all emails from your website are going to my spam folder. I had the same problem with my site before I found this service that increased my open rates without any of my emails landing in spam folders ever again which in turn increased my sales and revenue.
This unique email deliverability tool teaches inbox providers (e.g., Gmail, Yahoo Mail, etc.) to understand that the emails you send from your domain are important and valued by your recipients.
https://inbox-ally.com
Opt out of future messages by replying to the message and saying opt out.
gmass.co
Hi, we are planning to onboarding this application.
Is there a possibility to pay via wire transfer? We don’t have a corporate paypal account and we do not wish to pay via credit card.
Can you also send your terms and conditions?
Dear Sir,
We are following up on our previous email regarding a potential business collaboration. As we have not received a response yet, could you please reply so that we can share further details?
Thank you for your attention.
Best regards,
Adam Faris
I design and develop high-quality, custom websites—no templates, only top-tier craftsmanship. My 5-page portfolio sites start at $2,000, and e-commerce platforms from $3,500. First, I design all pages for approval. Once all designs are finalized, I begin development. The result? A fast, smooth, mobile-friendly, SEO-optimized, and high-scrolling experience. If quality matters to you, let’s build something exceptional.
Reply to webdesignservices111@outlook.com to discuss your project!
In the “How are your email lists used?” section you state “… our database does store the email addresses to which you are sending email.” but that “This data is … never shared with any third parties.”
The “Does GMass share any of your email list information with third parties?” section seems to contradict that statement by saying “We may share your email list information with third-party service providers, including advertising platforms …”
Please explain that apparent discrepancy.
Will the recipients of any GMass mailings receive unsolicited messages?
Absolutely not. We do not now and have never shared any user data with any third parties. That would be an awfully quick way to ruin our credibility and alienate our customers. In addition, we do not have any advertising on our website so there’s really nothing to share.
Hi Gmass,
I hope you’re doing well. I came across your website (https://www.gmass.co/) and I’m interested in what you offer.
Could you send me details on pricing, specifications, or any available brochures? If there are different options or packages, I’d appreciate that information as well.
Let me know if you need anything from my side. Thanks in advance – I look forward to hearing from you.
Best regards,
Ana Najafi, Pharm.D.
Director, Strategic Pharmaceutical Development
Hello! I just wanted to ask if you ever have any trouble with hackers? My last blog (wordpress) was hacked and I ended up losing many months of hard work due to no data backup. Do you have any methods to protect against hackers?
my Gmail account not open please backup verification code send me
Hi, Are you looking for reliable back-office outsourcing support for your daily business operations? I specialize in handling data entry, document processing, finance & accounting support, HR & recruitment tasks, CRM management, customer service, and real estate back-office tasks. My team ensures accuracy, efficiency, and cost-effective solutions.
If you need expert assistance, feel free to reach out at Fastprocess006@outlook.com. Let’s discuss how we can streamline your operations!
Greetings
Could you please confirm that you’ve received my earlier message?
Best regards,
PAUL CAMPBELL
Dear gmass.co Team,
We urgently need the invoice for our latest purchase from your company. Our accounts team requires this document for our records and reconciliation. If we do not receive the invoice promptly, we will have no choice but to initiate a chargeback with our bank.
Please contact us immediately at drink@meloseltzer.com or call us at 888-317-1784 to resolve this matter.
Thank you for your prompt attention.
Best regards,
Melo Seltzer Accounts Team
drink@meloseltzer.com
888-317-1784
Dear gmass.co Team,
We urgently need the invoice for our latest purchase from your company. Our accounts team requires this document for our records and reconciliation. If we do not receive the invoice promptly, we will have no choice but to initiate a chargeback with our bank.
Please contact us immediately at drink@meloseltzer.com or call us at 888-317-1784 to resolve this matter.
Thank you for your prompt attention.
Best regards,
Melo Seltzer Accounts Team
drink@meloseltzer.com
888-317-1784
Dear gmass.co Team,
We urgently need the invoice for our latest purchase from your company. Our accounts team requires this document for our records and reconciliation. If we do not receive the invoice promptly, we will have no choice but to initiate a chargeback with our bank.
Please contact us immediately at support@vesselbrand.com or call us at (833) 458-7822 to resolve this matter.
Thank you for your prompt attention.
Best regards,
Vessel Brand, Inc.
3230 W Commercial Blvd, Suite 180
Fort Lauderdale, FL 33309
E: support@vesselbrand.com
P:(833) 458-7822
Hi, Accurate data management can save hours every week — and that’s exactly what I help with.
Services include:
• Manual & online data entry (PDFs, invoices, forms)
• Product uploads (Shopify, WooCommerce, Amazon, Etsy)
• Excel cleanup, formatting & consolidation
• Web research, data collection & lead generation
• Document conversion & organization
• Report preparation & data analysis
Every task is handled with attention to detail and timely delivery.
Would you like to begin with a small pilot project? If yes, please reply to Dataentry756@outlook.com