The Unified Inbox for Smartlead
Every reply from your Smartlead campaigns lands in one Unified Inbox. AI inbox agents read each one, respond from the same sender in under 5 minutes, follow up automatically, and book meetings on your calendar.
How the Underfive Unified Inbox Works with Smartlead
Connect via Webhook
Add Underfive's webhook URL to your Smartlead account. When a lead replies to your campaign, Smartlead sends the message to your Unified Inbox instantly.
Inbox Agents Read and Respond
An inbox agent reads the lead's message, understands the context, and generates a human-like response. Objections are handled. Questions are answered.
Response Sent via Smartlead
The inbox agent sends the response back through Smartlead from the same sender. The email appears in the same thread. The lead sees a seamless conversation.
Meetings Booked Automatically
When a lead is ready to meet, your inbox agents negotiate times and book the meeting on your calendar. You receive the invite with all the details.
Why Use a Unified Inbox with Smartlead
Respond in Under 5 Minutes
Every Smartlead reply gets a response in under 5 minutes. No lead waits. No lead goes cold.
Human-Like Responses
Inbox agents write responses that sound like a real salesperson. Leads can't tell the difference.
Handles Objections
When leads push back, your inbox agents respond appropriately. They're trained on sales conversations.
Books Meetings
Inbox agents negotiate times and create calendar events. Meetings are booked without manual work.
Underfive Works With Smartlead, Not Instead of It
Smartlead is a cold email platform. Underfive is the Unified Inbox where the replies land. They work together. Smartlead sends campaigns. Underfive's inbox agents handle the replies. You keep using Smartlead exactly as you do today.
Add a Unified Inbox to Your Smartlead Campaigns
Start with 50 free replies. Connect Smartlead in under 5 minutes.
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