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Feature — Master Inbox

Every reply. Every mailbox.
One inbox.

Running outbound from 10 mailboxes shouldn't mean checking 10 inboxes. Master Inbox pulls every reply, sent email, and scheduled message into a single view — so your team never misses a response or loses a conversation thread again.

All
Mailboxes in one view
0
Missed replies
Inbox
Sent · Scheduled · Archived
1-click
Reply from any mailbox
Why teams love it

Stop jumping between mailboxes.

When you're sending from 5, 10, or 20 mailboxes, keeping track of replies becomes a full-time job. Master Inbox solves that completely.

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Unified reply view

Every reply to every sequence from every mailbox lands in one inbox. One tab to rule them all — no more account-switching to find that hot reply.

send

Sent & scheduled in one place

See every email sent and every scheduled follow-up across all mailboxes. Spot gaps, review messaging, and manage timing — without leaving the inbox.

reply

Reply from the right mailbox

When a lead responds, reply directly from Master Inbox — the outgoing email routes through the same mailbox that sent the original sequence.

01 — Replies

Never miss a hot reply again.

Every reply to every sequence from every mailbox lands in one place — sorted by recency, searchable by contact or company. Your SDRs spend time responding, not hunting for emails.

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    All mailboxes, one view. 10 sending mailboxes becomes one inbox — replies from all of them aggregated instantly.
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    Full thread context. See the original sequence email and the reply together — no context switching to understand what you sent.
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    Search across everything. Find any conversation by contact name, company, or email content — across all mailboxes at once.
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    Auto-stops the sequence. When a reply lands, Happierleads automatically stops further follow-ups to that contact — no awkward double-sends.
all_inbox All mailboxes · 3 inboxes combined
02 — Sent & Scheduled

Full visibility on what's been sent and what's queued.

See every email that's gone out and everything in the queue — across every mailbox, every sequence, every lead. Your team always knows exactly where each prospect is in the process.

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    Sent history. Every email sent from every mailbox in reverse-chronological order — with delivery and open status inline.
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    Scheduled queue. See every pending follow-up before it fires — edit, delay, or cancel directly from Master Inbox without touching the sequence editor.
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    Archive management. Clean up resolved conversations with one click — keep the inbox focused on open threads only.
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    Multi-mailbox attribution. Each thread shows which mailbox sent it — so you always know the right context before replying.
Scheduled follow-ups
TN
Tom Nguyen · Vercel
Follow-up #2 · "Quick follow-up on my last note"
Tomorrow 9:00
Edit Cancel
AK
Aisha Khan · Stripe
Follow-up #3 · "Last outreach — worth a quick look?"
Wed 10:30
Edit Cancel
RL
Ryan Liu · Linear
Follow-up #1 · "Quick question, Ryan"
Thu 8:45
Edit Cancel
schedule 3 emails queued across 2 mailboxes

One inbox for everything you send

Available on every plan. No setup — Master Inbox is active the moment you connect your first mailbox.

Common questions

FAQ

Does Master Inbox work with all my mailboxes?

Yes — every mailbox connected to your Inbox Engine is automatically included. As you add more mailboxes, they appear in Master Inbox immediately with no setup required.

Can I reply to leads from Master Inbox?

Yes. When you reply from Master Inbox, the outgoing email automatically routes through the same mailbox that sent the original sequence — so threads stay clean and sender consistency is preserved.

Does a reply automatically stop the follow-up sequence?

Yes — when a reply is detected, Happierleads automatically pauses the sequence for that contact. No more awkward follow-ups landing after a lead has already responded.

Is Master Inbox available on all plans?

Yes, Master Inbox is included on every paid plan. There's no add-on or upgrade required.

Can I search across all mailboxes at once?

Yes — the search bar in Master Inbox searches across all connected mailboxes simultaneously. Search by contact name, company, subject line, or email body.

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