Smartlead + Underfive
The ultimate cold email stack. Smartlead's powerful outreach combined with Underfive's AI responses.
Why This Integration?
Combine the best of both worlds for unbeatable results
Faster Response Times
Respond to leads 10x faster than your competitors
Higher Reply Rates
AI-optimized responses that get more replies
More Meetings
Convert more leads into booked meetings
Get Started in 4 Steps
Connect Smartlead to Underfive in minutes
Add API Key
Connect your Smartlead account via API
Configure Webhook
Set up webhook to receive reply notifications
Set Up Agent
Customize your AI response parameters
Start Automating
Let AI handle your email responses
Important: Unique Credentials Per Workspace
Every workspace in Smartlead has a unique API key, and every workspace in Underfive has a unique webhook URL. Add your Smartlead API key in Underfive, and add your Underfive webhook URL in Smartlead. Without both configured correctly, the AI agent won't be able to process replies.
Configure Your Webhook
The webhook is essential for Underfive to receive real-time notifications whenever a lead responds to your Smartlead campaigns. This powers instant AI replies.
- ✓Get your unique webhook URL from Underfive
- ✓Add it to Smartlead's webhook configuration
- ✓Enable "Reply Received" event triggers
Watch the Setup Guide
Follow along with our step-by-step video tutorial to get started with Smartlead + Underfive
Smartlead Campaign
Cold Outreach - Q4 2024
Hi! I saw your email about AI automation. We're definitely interested in learning more about how this could help our sales team. What's the best way to get started?
Hi John! Great to hear from you. I'd love to show you how our AI can help your sales team respond to leads 10x faster. Would you be open to a quick 15-minute call this week? I have availability on Thursday at 2pm or Friday at 10am ET.
Powerful Features
Everything you need for intelligent email automation
AI Lead Sentiment Analysis
Underfive automatically analyzes and categorizes lead responses based on sentiment and intent
Smart Personalization
Generate hyper-personalized responses using lead context and history
Optimal Timing
Send responses at the perfect time for maximum engagement
Custom Workflows
Build custom response workflows tailored to your sales process
Spam Protection
Advanced algorithms prevent spam triggers and protect sender reputation
Multi-Mailbox Sync
Sync responses across all your Smartlead mailboxes seamlessly
Ready to Supercharge Smartlead?
Join the teams already getting more meetings with Smartlead and Underfive