How to cancel a scheduled mail merge campaign and stop it from sending
If you have a scheduled mail merge campaign, it will show under the GMass Scheduled Label. You have a few options to cancel the campaign. Cancel from the…
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Email, Gmail, and GMass — explained.
Practical guides, product updates, deliverability research, and experiments from the team building GMass.
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Check Your Gmail Account’s Quota and Sending Limit
We’ve added a button to the GMass Settings panel that shows you how many emails you’ve sent with your Gmail account over the last 24 hours, and how…
Send 10,000 emails with Gmail [Updated 2026]
Yes, you can send 10,000 emails with Gmail. (Or 50,000. Or 100,000. Or 1,000,000.) But you’ll need a little help.. Because normally, if you’ve got a list of…
Common GMass Support Issues
I’ve gone through my support emails recently, and these are the most frequently asked tech support questions, so if you’ve experienced any of the following, now you’ll know…
Performance Improvement: Much faster sending now
We’ve implemented a concept into the GMass sending engine that software developers call “parallelism”, and in the context of GMass, that means our software can now send multiple…
Google Sheets Mail Merge: 4 Methods + 5-Minute Quickstart Guide
A Google Sheets mail merge is the best way to send a personalized email campaign (of any size) through Gmail. Whether you need to… Send personalized emails at scale.…
Add an Unsubscribe Link
You now have the option to insert an Unsubscribe link into your email marketing campaigns with GMass. Adding an unsubscribe link in GMass To insert an unsubscribe link,…
Email Click Tracking: How to Track Email Clicks with GMass?
What is Email Click Tracking and How Does it Work? With email click tracking, you can measure how many times recipients click on links within email messages. One…
Schedule Mass Emails
You can now schedule a mass email in Gmail to be sent at a future date and time. Scheduling a mass email in Gmail with GMass Access the…
Introducing GMass: a dead simple mass email and mail-merge tool for Gmail
Welcome to GMass — the easiest way to send mass email campaigns through your own Gmail account. I built GMass to be a dead-simple mass email system for…