GMass

GMass is a powerful email marketing tool that integrates with Gmail to extend its functionality. It includes several features that help users to personalize emails at scale using mail merges and conditional logic, share campaign analytics reports highlighting opens, clicks, and replies, and boost response rates with automatic follow-up sequences. Users can add quick, one-question surveys to email campaigns, send new campaigns as replies to prior messages, and even break Gmail's sending limits using proprietary technology. It also allows users to read merge fields and auto-send emails to new rows in Google Sheets, as well as schedule mail merges for the future or set them to repeat.