Frequently Asked Questions

 Frequently Asked Questions

A: You need a Gmail or G Suite account and the Chrome browser.

A: Click "Compose" in Gmail. Enter a few email addresses in the To field. Put in a Subject and Message, and hit the GMass button (instead of the normal Gmail Send button).

A: GMass is lightweight and unobtrusive. After you install GMass, you will notice four extra buttons within your Gmail interface. Three of these buttons are small square buttons to the right of the search field: the "Build Email List" button, the "Google Sheets Connect" button and the "Follow-up Campaigns" button. Secondly, when composing an email, you'll notice the GMass button along with a settings control. Lastly, you'll see some new Gmail Labels on the left where we store reports, like open and click reports.

A: Most mass email campaigns are sent as new messages, and therefore new conversations, with each recipient. The ability to send a mass email and have each individual email sent as a reply to the last conversation with each recipient, creates a far better impression with the recipient than a new message would, because the email campaign is threaded within the conversation. If there is a recipient in your list with whom you have not had a prior conversation, then a new message will be sent.

A: This option is useful if you want to test GMass’s functionality but don’t want to actually send anyone emails. For example, if you want to ensure personalization is working, this option comes in handy. You can also use the "Send Test Email" button to test personalization.

A: Absolutely. You are composing your email just as you would any other email message in Gmail. Any feature of an email that Gmail supports you can assume that GMass also supports.

A: No. GMass is meant to supplement your existing email marketing system. While traditional email marketing services can handle email campaigns to millions of recipients, GMass is meant for small-volume sends to hundreds or thousands of people. One way GMass supplements your actual email marketing system is by making it easy to follow up with everyone that replied to a campaign sent through a traditional ESP. Assuming the replies go to your Gmail account, use GMass to search for the replies, then use the “Build Email List” feature.

A: Your emails are sent from Gmail’s servers from your Gmail or Google Apps account. You’ll see all sent messages in your “Sent Mail” folder, just like you would a regular email. The benefit of this is that you get to take advantage of Gmail's sending reputation. You will likely see higher open-rates than you've ever seen before with any other email marketing system.

A: GMass itself doesn't impose any limits, but Gmail imposes a limit of 2,000 sent emails/day for trusted Google Apps users, and 500 emails/day for other users. There are other factors that determine sending limits too, such as the age and reputation of your Gmail account. GMass allows you to artificially break those limits by distributing your emails over multiple days if your campaign exceeds your account's daily limits. For detailed information on Gmail sending limits, see:

A: You can access your open-tracking, click-tracking, and unsubscribe reports by clicking on the "GMass Reports" Label on the left of the Gmail interface. Note that the "GMass Reports" label only shows after you have at least one reporting event take place, meaning at least one email open, one link click, or one unsubscribe. Note that you must click the tiny expansion arrow next to "GMass Reports" to expand and see other report categories.

A: You can search based on any number of criteria and fields, from text in the Subject and Message, to Dates sent and received, and you can even use boolean operators. Gmail has a great web page on advanced searches. See

A: Yes, as of August 2017, GMass works with the new Inbox by Google. So you can use it with classic Gmail or the new Inbox.

A: When it comes to Gmail integration, there aren’t that many alternatives. The other mass email solutions are part of a larger product, while GMass is focused on just mass email and mail merge functionality. We built GMass to be dead simple.

A: GMass was free for the first 11 months of its existence. Starting August 15, 2016, we are asking serious users to subscribe to a paid plan. You can use it for free to send up to 50 emails at a time, but if you need to send more, you will need to subscribe.

A: Absolutely not. GMass connects to Gmail's API to operate, and that requires you granting GMass access to certain parts of your account through the API. GMass staff will never see your email, and in fact, even when you use GMass to send emails, we don't store the contents of your email messages. We only store the recipient addresses and the Subject lines, so that we can provide Open and Click Reports.