GMass 101

A quick guide on getting started with GMass and sending your first campaign.

  • Before sending emails, create a Google Sheet containing the customer information you want to import into your mass email campaign.
  • In most cases, you only need the customer’s name and email address.
    GMass uses the column headers in your sheet to pull data into each email and personalize the message.
    ⚠️ Important: Do not use spaces in your column headers.
    Example: FullName, FirstName, LastName, Email
  • Open your Gmail inbox and click the “Compose” button to start a new email.
  • You will see a new, red “GMass” button next to the regular blue Send button.
    This is the button used to send mass emails through GMass.
  • Before sending your campaign, you must connect your Google Sheet to GMass.
  • Click the small GMass spreadsheet icon next to the CC button.
  • In the popup window, select “From a Google Sheet.”
  • In the dropdown menu, select the Google Sheet you created.
    (It will appear under the same name as your Google Sheet file.)
  • Next, choose the correct tab/sheet that contains your list of contacts.
    You can find the tab name at the bottom of your Google Sheet.
  • Check both tracking boxes so GMass can track opens, clicks, and replies.
  • Click the red “Connect to Spreadsheet” button.
  • Once connected, the “To” field will be replaced with a URL that links to your Google Sheet.
    You will also see the number of recipients displayed, and the popup window will confirm that the connection was successful.
  • Now enter your subject line and write your email message.
  • To insert customer data into your email, type the “{” symbol.
    A dropdown list will appear showing available personalization fields based on your column headers.
  • Before sending to your full list, it’s recommended to send a test email to yourself.
  • Click the small arrow next to the red GMass button to open the settings menu.
    Enter your email address at the top and click the purple “Send Test” button.
  • Once everything looks correct, click the red GMass button and select “Send It.”
    Sending typically takes 2–3 minutes depending on the number of recipients.
    ⚠️ Important: Do not edit your Google Sheet while emails are sending, as this may interrupt the campaign.
  • You can monitor your campaign progress in the GMass Dashboard, where you can view stats such as sends, opens, clicks, replies, blocks, and more.
  • login using your Gmail account at https://app.gmass.co/dashboard