Join the GMass Affiliate Program
GMass has an affiliate program, making GMass the only mail merge system for Gmail that provides its 500,000 users the opportunity to make money by referring more users…
GMass Blog
Email, Gmail, and GMass — explained.
Practical guides, product updates, deliverability research, and experiments from the team building GMass.
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The danger of Gmail’s Canned Responses feature
I had a user report to me this morning that she sent a campaign with GMass, and the email went out with a blank body to all her…
Send recurring automated email campaigns with Gmail and Google Sheets
With GMass, you can send emails automatically to new rows added to your Google Sheet. This is the second most powerful feature we have ever built (the most…
How to uninstall GMass
Occasionally, a user is unable to handle all the sales generated by using GMass and therefore wants to uninstall GMass. If you find yourself in this predicament, this…
How I used GMass to buy a brand new 2016 Lexus under invoice cost
My wife and I with our brand new 2016 Lexus NX 200t on August 1, 2016. We used GMass to negotiate the price of the car and never…
How to resend your Gmail mail merge campaign when you get errors
In the last few days, we’ve noticed an increase in the number or errors returned to GMass by the Gmail API. The Gmail API is the interface by…
How to include a personalized link in a Gmail email marketing campaign
GMass, the ultimate email marketing tool for Gmail, offers lots of mail merge personalization options, from simple mail-merge personalization to fallback values and even automatic first name detection. Sometimes,…
Why your Gmail account becomes inaccessible when sending a big mail merge campaign
If you’ve ever been locked out of your Gmail account while sending a large mail merge campaign, you’re not alone, and don’t be alarmed. It’s normal Gmail behavior,…
How to resend your Gmail mail merge campaign to blocked email addresses
If you sent a mail merge campaign with GMass and found that you experienced some blocking, you may want to re-send your email to the email addresses that…
How to Remove Recipients from an Individual Campaign
Sometimes specifying who is getting your mail merge campaign is just as important as specifying who should NOT get your mail merge Gmail campaign… thanks to our Suppression feature,…
You can now toggle GMass Report notifications on and off
When you send a campaign with GMass, event notifications and campaign reports are generated as emails and placed under the GMass Reports label as activity takes place after…
What to do if you get a “Requested entity was not found” error after clicking the GMass button
Occasionally, after you’ve composed your mail merge campaign in Gmail and hit the GMass button, instead of sending, you may receive this error in the yellow status bar…