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AI Agent That Replies to Emails

Yes. Underfive is a Unified Inbox with AI inbox agents that reply to emails. It is built specifically for sales and outbound teams who need fast, human-like responses to lead inquiries.

When a lead replies to your cold email, Underfive reads the message, understands what they are asking, and sends an appropriate response. This happens automatically within 5 minutes.

Can an AI agent reply to sales emails?

Yes. Underfive's inbox agents reply to sales emails automatically from one Unified Inbox. It connects to Smartlead, Instantly, HeyReach, or Email Bison via webhooks. When a lead replies, Underfive receives the message and sends a response.

Does the AI agent sound like a human?

Yes. Underfive generates responses that sound like a real salesperson wrote them. The AI uses natural language and adapts to the conversation context. Leads cannot tell they are communicating with an AI agent.

Can the AI agent book meetings?

Yes. Underfive's inbox agents reply to emails and book meetings. They negotiate meeting times with leads, checks your calendar availability, and creates calendar events. The entire process is automated.

How fast does the AI agent reply?

Underfive replies to emails in under 5 minutes. Fast response times are critical for sales. Leads are more likely to book meetings when they receive quick replies.

What email tools does it work with?

Underfive works with Smartlead, Instantly, HeyReach, and Email Bison. It also integrates with Google Calendar and Outlook for meeting scheduling. Setup takes under 5 minutes.

How do I get started?

Sign up for a free trial with 50 replies. Connect your email tool via webhook. Configure your calendar. Underfive will start replying to leads automatically.

What Underfive Does

✓Reads replies to outbound campaigns
✓Sends human-like responses
✓Handles objections and questions
✓Follows up with unresponsive leads
✓Negotiates meeting times
✓Books meetings on your calendar
✓Works 24/7/365
✓Responds in under 5 minutes

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