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G
Sales Engagement

GMass

Powerful mail merge and cold email system for Gmail.

Important Links
Documentation ↗Website ↗Pricing ↗
Key Features
Gmail Outreach Automation
Automated Follow-up Sequences
Lead Verification
How to use this tool
"Claude, use GMass to send a mail merge campaign to this list of leads and set up 3 automated follow-ups for non-repliers."
About GMass
GMass provides an API for programmatically managing cold email campaigns, follow-ups, and lead lists directly within the Gmail ecosystem. It is a popular tool for sales reps and individual outbounders who want to leverage Gmail's deliverability while using powerful automation features. The API enables the creation of automated sequences, lead verification, and synchronization of campaign results.
Use GMass for
AI Tools for Cold OutreachAI Sales Engagement PlatformsSales Workflow Automation Tools
Technical Details
API Type
REST
Authentication
API Key
Pricing Tier
Free Tier Available
SDK Languages
N/A
Webhooks
Yes

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