unified inbox

Every mailbox's replies, one screen

Replies from every campaign and mailbox funnel into a single view. Conversations stay threaded, you can search and filter across everything, mark items read or unread, and archive what's done. You stop hopping between individual email accounts to figure out who wrote back.

Set up in under 15 minutes
sendbox / workspace / unified inbox

Unified Inbox

Workspace

Live

Replies land on their own

Every response from every connected mailbox shows up in your unified inbox automatically, with unread counts badged so nothing slips past you.

  • Every reply, one place
  • Threaded conversations
  • Search and filtering
  • Read/unread and archive
Every reply lands in one place, not eight
inside the app

A look inside the Sendbox dashboard, where Unified Inbox lives.

Inbox3
Search by name, email...
Elena Vasquez
elena@webflow.com•Fintech Ops Leaders
Y
You<jordan@brightloop.com>
Yesterday, 11:52 AM
Hi Elena, saw Webflow is scaling outbound fast right now. We built Sendbox specifically around the deliverability problem, a dedicated IP per mailbox, real warmup, and zero shared reputation with other senders. Want a quick look?
EV
Elena Vasquez<elena@webflow.com>
5m ago
Could we jump on a call this Thursday to see the demo?
Replying to Elena Vasquez
Write a reply...
inbox tools

Nothing scattered across accounts

Start sending

Every reply, one place

Responses from every mailbox and campaign stream into a single inbox, no more account-hopping.

Threaded conversations

Full email threads with lead data and campaign context attached, so you never lose track of where things stand.

Search and filtering

Find any reply instantly, or filter by campaign, mailbox, or status to zero in on what matters right now.

Read/unread and archive

Track what still needs attention and archive what doesn't, keeping the inbox clean as you go.

daily workflow

Answer faster without switching tabs

Start sending
  1. Step 1

    Replies land on their own

    Every response from every connected mailbox shows up in your unified inbox automatically, with unread counts badged so nothing slips past you.

  2. Step 2

    Open the full conversation

    Click into any reply and see the whole thread, your original message, their response, and every follow-up, all in context.

  3. Step 3

    Search, sort, and clear it out

    Search across every reply, filter by campaign, mailbox, or status, mark conversations read or unread, and archive what you've handled.

Where it fits

Managing replies across an SDR team

Everyone works from the same inbox. Unread badges make it obvious what still needs a response, so nothing falls through the cracks.

Running multiple client inboxes at once

Handle every client's replies from one place, filtering by campaign when you need to focus on a single account.

Following up with full context

Thread view surfaces the entire conversation history, so you respond with context instead of digging through individual mailboxes first.

vs competitors

Built like an inbox, not a timeline

Why teams switch

Every reply lands in one place, not eight

Most platforms leave your replies scattered across whichever mailbox each one happened to land in. Sendbox pulls them all into a single threaded inbox with search, filters, read/unread state, and archiving built in, so a reply buried in mailbox #6 stops slipping through.

  • Beats Instantly
  • Beats Smartlead

Threads that keep their context

Every reply shows the full email thread, your message, their response, every follow-up after it, alongside the campaign name and lead data.

  • Nobody on your team has to ask which campaign a reply came from.

Search and organize at any scale

Keyword search runs across every reply.

  • Filter by campaign, mailbox, or read/unread status, mark conversations as handled, and archive finished threads to keep the inbox tidy.
faq

Got questions? We've got answers.

Yes, every reply from every connected mailbox appears in the unified inbox, no matter which campaign or sender it came from.

Ready to land in primary?

Get your own isolated Sendbox setup running and start sending inside 15 minutes.

Every plan includes a dedicated IP. Cancel whenever you want.