GMass

AI Marketing Tools

Revolutionize email marketing with GMass, an AI-powered tool for Gmail. Personalize, schedule, and optimize campaigns effortlessly.

GMass screenshot

What does GMass do?

What are the key features of GMass?

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GMass transforms Gmail into a powerful email marketing tool with these key features:

  • Mail Merge with Google Sheets: Easily send personalized mass emails by connecting GMass to any Google Sheet, allowing for customization using spreadsheet columns.
  • Automated Follow-Ups: Boost response rates by setting up email sequences that automatically send until a recipient replies.
  • Break Gmail's Sending Limits: GMass uses distribution technology to send virtually unlimited emails, bypassing standard Gmail limits.
  • Email Verification and Spam Testing: Ensure high deliverability by verifying email lists, testing links, and checking for spam triggers before sending campaigns.
  • Build Lists from Existing Contacts: Find and use email addresses from your Gmail account without needing external CSV files.
  • Comprehensive Analytics: Access in-depth reports on email opens, clicks, replies, and bounces directly within Gmail.
  • Behavior-Based Campaigns: Target segments of previous campaigns based on recipient actions like opens or clicks.
  • Reply Management: Automatically categorize replies and bounces to keep your Inbox organized.

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How does GMass personalize emails?

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GMass offers robust personalization by integrating with Google Sheets:

  • Connect Google Sheets: Use any column in your Google Sheet to personalize emails.
  • First and Last Name Insertion: GMass automatically includes recipient names with fallback options available.
  • Dynamic Content: Insert personalized fields, links, company names, or other data effortlessly.
  • Auto-Detection: Automatically detect and insert recipient names to save time.

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What automated follow-up capabilities does GMass offer?

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GMass enables users to send automated follow-up sequences until a recipient responds. This feature helps increase response rates for cold email campaigns and ensures messages remain relevant to the recipient.

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How are email analytics handled in GMass?

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GMass provides comprehensive analytics to monitor campaign performance:

  • Campaign Reports: See detailed reports on opens, clicks, replies, and bounces.
  • In-App Insights: Access analytics directly from Gmail on desktop or mobile.
  • Behavior-Based Segmentation: Create follow-up campaigns based on past recipient actions.

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What are the Gmail sending limits, and how does GMass handle them?

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GMass can break Gmail's typical sending limits by using its distribution technology, allowing users to send virtually unlimited emails, which helps ensure large campaigns reach all intended recipients.

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Can I schedule emails with GMass?

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Yes, GMass allows you to schedule mail merges and mass emails for future dates and times, or set them to repeat daily or hourly, providing flexibility in your email campaigns.

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How does GMass help with list building?

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Use Gmail's search capabilities to find specific email addresses within previous conversations in your account, then use GMass’s "Build Email List" function to compile these addresses for campaigns.

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What are behavior-based campaigns in GMass?

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Behavior-based campaigns in GMass allow you to create targeted follow-up emails based on recipients’ actions from prior campaigns, such as targeting those who opened the last email or those who didn't click a link.

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How does GMass manage replies and responses?

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GMass automatically categorizes incoming replies and bounces related to your mass emails, streamlining response management and preventing Inbox clutter.

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Does GMass support different browser and email platform combinations?

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GMass requires the Chrome browser and a Gmail account to function properly, which means it is exclusively compatible with the Chrome and Gmail combination.

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Can GMass verify email addresses and links before sending?

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Yes, GMass includes features for verifying email lists and testing links, ensuring that campaigns have a higher deliverability rate and reducing the risk of spam.

Last modified
Jun 1, 2026
Date listed
May 17, 2026