Get the highest open rates you've ever seen.
Used by employees of:
Turn Gmail into an email marketing and cold email platform
Use mail merge personalization with Google Sheets
Verify your list, test links, & fix spam triggers before you send
Maximize your deliverability — hit the inbox, not the spam folder
Send automated follow-up sequences
Break Gmail’s limits — send virtually unlimited emails
Say goodbye to CSV files. Connect to Google Sheets to send a personalized mass email using any of the columns in your spreadsheet.
The easiest way to send cold email sequences in Gmail.
Use Gmail's powerful search feature to find messages containing recipients to whom you want to email. Then click the Build Email List button, and a Compose window will load containing the email addresses found in those messages. The only mass email service that does this!
Our mass email service can break Gmail's sending limits using our distribution technology.More details
GMass will read data live from any Google Sheet and even monitor for new rows and then send emails automatically.More details
Campaign level reports that show how many people opened, clicked, replied, and bounced. See reports inside Gmail on your desktop or the Gmail app on your phone.More details
Personalize to your heart's content. Connect to a Google Sheet and personalize with any column, or use basic first and last name personalization without a spreadsheet. Use fallback values. Don't know someone's first name? We'll auto-detect it.More details
Sending cold email? Set automatic follow-up emails to send in a sequence until your recipient replies. The best way to boost response rates.More details
Schedule a mail merge for any time in the future, or set it to repeat daily or hourly.More details
Send to a segment of a prior campaign, like everyone who opened the last campaign, or everyone who didn't click the last campaign.More details
Emails received in response to a mass email, including replies and bounces, are automatically categorized for you, preventing Inbox clutter.More details
Find email addresses deep inside your Gmail account just by searching.More details
Most people love GMass. Every now and then, a curmudgeon doesn't. See our thousands of awesome reviews (click the "Reviews" tab). Still not convinced? Here's why GMass is better.