Introducing Duo Inbox: AI reply drafts for email and social, right where you work

Inbox work should be simple.

But for sales reps, it rarely is.

Prospects reply with questions, objections, and scheduling requests throughout the day. 

And each reply pulls you into a slower workflow. 

You read the thread, write something new or copy a past reply, tweak it a bit, and try to respond fast before jumping to the next thing.

Now multiply that across the roughly 36 emails sales reps handle each day, plus calls and social touches, all while juggling prospecting, sequences, meetings, and follow-ups.

The result is predictable:

• Good replies take time, so they get delayed
• Fast replies can lose quality or consistency
• Follow-ups slip through the cracks
• Reps end up switching tools just to keep up

We built Duo Inbox to make prospect replies faster, more consistent, and easier to manage without losing control.

Say hello to Duo Inbox

Duo Inbox is Amplemarket’s AI sales reply assistant.

It works as an AI reply generator for sales teams, creating draft responses to prospect emails and social messages.

If that sounds familiar, it is because Duo Inbox has been around for a while under a different name. You may have known it as AI Replier.

What started as a way to help reps respond faster to email replies has grown into something much bigger.

Today, Duo Inbox helps sales teams handle prospect replies across email and social conversations, directly where they already work. 

It automatically creates reply drafts when prospects respond, using approved messaging and real conversation context, so reps can move quickly without starting from scratch every time.

You still review every reply. You still decide what gets sent. 

Duo Inbox simply does the heavy lifting in the background.

Over the past months, we listened closely to how teams were using it and where it fell short. Switching tools felt clunky. Coverage was incomplete. Control and visibility needed to be better.

So we rebuilt and expanded Duo Inbox to fit naturally into a modern sales workflow.

AI reply drafts for sales teams

At its core, Duo Inbox helps sales reps reply to prospect objections and questions faster without sacrificing quality or control.

When a prospect responds, Duo Inbox automatically creates a reply draft in the background.

The draft is tailored to the specific conversation and grounded in approved messaging, so you are never starting from a blank page.

Every reply is a draft. Nothing is sent automatically.

Reps can review the copy, make edits if needed, and send when ready, all from the same place they already manage conversations.

Duo Inbox helps teams:

• Respond quickly to prospect questions and objections
• Stay consistent with approved messaging and positioning
• Keep follow-ups from slipping through the cracks
• Handle replies across email and social conversations without switching tools

It works out of the box, and gets even better as you add Scenarios and messaging guidance that reflect how your team sells.

Once this foundation was in place, we focused on expanding Duo Inbox in the areas that mattered most to reps and managers.

As sales teams rely more on AI to handle replies at scale, the challenge is no longer just speed, but trust, control, and consistency.

That led to a set of major updates.

That foundation is already delivering results for teams like Ceros. As Gabi Fishkind, Head of Revenue Development at Ceros, puts it:

“Duo Inbox saves our team so much time writing personalized replies. Definitely the most accurate and human-like responses I’ve seen from AI.”

Within weeks of adopting Duo Inbox, the team saw reps save 1–2 hours per week on replying to emails. Read the full case study here.

What’s new in Duo Inbox

As more teams used Duo Inbox day to day, clear patterns started to emerge.

Reps wanted faster replies without switching tools. 

They wanted help across email and social conversations, not just part of their inbox. Managers wanted clearer guidance, more trust in what AI was generating, and better control over when drafts appeared.

So we focused on making Duo Inbox feel like a natural part of the workflow, while giving teams more coverage, clarity, and confidence in every reply.

Right where you already work, in the Unibox

One of the biggest sources of friction was context switching.

Reply drafts were already being generated in the email inbox, but reps still had to jump between tools to manage conversations.

Now, those same reply drafts are also available directly inside the Unibox, so reps can review and send replies right where they manage their conversations.

This creates a single, consistent place to handle replies without breaking focus.

Reply to both email and social conversations

Prospects do not just reply over email.

Many conversations continue on social channels, which often means slower responses or switching tools just to keep up.

Duo Inbox now creates reply drafts for both email and social conversations from the same workflow inside the Unibox.

Reps can review and send AI generated drafts for social messages directly where they already manage conversations.

The result is faster, more consistent replies across every channel where prospects engage.

Clearer guidance through Scenarios

As teams scaled their use of Duo Inbox, Scenarios became an important part of how they shaped replies.

Scenarios act like internal playbooks, helping guide responses to pricing questions, competitor comparisons, trial requests, and common objections.

We redesigned the Scenarios experience to make it easier to understand, review, and maintain over time.

Teams now have better visibility into which Scenarios are being used and which ones may no longer be relevant, making it easier to keep guidance clean and aligned as messaging evolves.

Book meetings with automated follow-ups

Many prospect conversations stall after the first response, especially when scheduling requires back and forth, or follow-ups are forgotten.

Duo Inbox helps teams move conversations forward by making it easy to follow up on prospect replies in just one click.

Reps can include contextual follow-ups and calendar links directly in reply drafts, helping prospects book meetings without extra manual work.

The result is fewer dropped conversations and more replies that turn into actual meetings.

Why this matters for sales teams

Taken together, these updates make Duo Inbox feel less like a feature and more like a core part of how sales teams handle inbound replies.

For reps, it means:

• Faster replies without starting from scratch
• One place to manage email and social conversations
• Fewer missed follow-ups and dropped threads

For managers, it means:

• More consistent messaging across the team
• Faster onboarding for new reps
• Clear visibility into how AI-generated replies are created

Duo Inbox helps teams move faster without losing control, quality, or trust.

Try Duo Inbox today

If you are already using Duo Inbox, jump into the Unibox and explore the new experience, updated Scenarios, and source visibility.

If you are new to Amplemarket, start a free trial or request a demo to see how Duo Inbox helps your team handle prospect replies faster and more confidently across email and social.

We are excited to see how teams put it to work.