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Gmail

GMass is an email platform that lives completely inside Gmail... so yeah, we've become something of Gmail experts over the years.

Here in our Gmail archives page, you can read everything we've written about the Gmail platform: tips, techniques, troubleshooting, usage ideas, and guides for everyone from beginners to power users.

While these articles all focus specifically on Gmail, many of them will also cover the symbiotic relationship between Gmail and GMass — and how pairing GMass with Gmail will open up lots of new features and enhancements for your entire email process.
Gmail 69585 bounce message

November 23, 2017

Gmail’s 69585 bounces and what they mean

A Gmail 69585 bounce is a type of block indicating that Google preemptively filtered your email before it ever reached the recipient's server.

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October 30, 2017

Gmail Draft thinks To field is blank if invalid characters present in address

We’ve discovered that in certain situations, Gmail doesn’t save the addresses in the To field as part of a Draft, …

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October 12, 2017

How to Run a High ROI Gmail Ad Campaign

  Email open rates aren’t amazing. We all know that. Especially when it comes to cold emails or reaching someone …

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August 10, 2017

GMass now works with Google Inbox

It’s been a long time in the making, but GMass finally works with Google Inbox. We’re so excited that we’re …

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July 27, 2017

Announcing the launch of “The Gmail Genius”

I’m launching an email newsletter today focusing on Gmail productivity! If you’re a GMass user, then you’re also one of …

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February 24, 2017

You can now restore a deleted Gmail Draft

GMass uses Gmail Drafts as the storage mechanism for every mail merge campaign you send. After GMass is finished sending the …

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January 18, 2017

Gmail rolls out a new and prettier bounce notification format

A few days ago, I noticed that bounce notifications from Gmail were no longer cryptic plain text emails with SMTP …

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January 7, 2017

How many email addresses will the Gmail Compose window hold?

Since GMass uses the native Gmail Compose window as the basis for campaign creation, and since GMass allows you to …

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January 6, 2017

Easy way to send a mass email to every contact in your Gmail account

  Using Gmail and my Gmail extension GMass, it’s easy to send a mass, personalized email to every email address …

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December 1, 2016

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 …

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May 14, 2016

How to handle this strange Gmail bounce: “read error: generic::failed_precondition”

Several users have recently reported seeing bounce backs from Gmail that look like this: Delivery to the following recipient failed …

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Who uses GMass?

April 26, 2016

Who Uses GMass? (Email Uses for Business, Groups, Individuals)

GMass is well-known as a cold email platform, but there are tons of email uses beyond that. Here's how businesses, organizations, and individuals use GMass.

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