Sends
Routes the reply
ClosesConnect Reply.io with Attio
Reply.io sends. Attio closes. The replies in between get lost.
Master Inbox is the router in the middle
Reply.io is an AI-powered multichannel sales engagement platform, email, LinkedIn, calls, and SMS. Attio is a modern, flexible CRM teams build into the exact workflow they want. The gap is the replies: they scatter across mailboxes, and getting them into Attio means a rep copying threads by hand, if they remember at all. Master Inbox is the router in the middle. It catches every reply from Reply.io, including the forwards and out-of-office Reply.io never surfaces, tags it by intent, and syncs the contact, conversation, and stage straight into Attio. Reps work one inbox; Attio fills itself with warm leads.
What you can do
- Every Reply.io reply becomes a Attio contact with the full thread attached
- Interested replies mapped to the right Attio stage automatically
- Reply from Master Inbox, logged to Attio, with zero double entry
- Stop Reply.io from emailing prospects already active in Attio
How the Reply.io to Attio flow gets set up
- 1Connect the mailboxes behind Reply.ioBulk-import the sending mailboxes your Reply.io campaigns run on. Master Inbox reads the mailbox itself, which is how it catches forwards, out-of-office chains, and new-address replies Reply.io never surfaces.
- 2Link your Reply.io workspaceIn Settings, open Integrations and connect Reply.io with your API key. Campaign context now travels with each reply, so you can see which sequence started every conversation.
- 3Connect AttioIn Settings, open Integrations and connect Attio. Contacts, conversations, and reply tags sync automatically from then on.
- 4Map labels to Attio stagesChoose which reply labels (interested, pricing, referral) create or update Attio records and which pipeline stage each one lands in.
- 5Go live with white-glove onboardingOnboarding is done with you, not handed off to docs: we wire the Reply.io to Attio flow on your real inboxes during the free 7-day POC.
Why it matters for outbound revenue teams
The Reply.io-to-Attio handoff is where outbound revenue leaks: a hot reply that never makes Attio is a deal you already paid for and lost. With Master Inbox in the middle, every Reply.io reply lands in Attio in seconds, with context.
“In an ideal scenario, fully integrated with our CRM, which is the tricky part. We use Attio.”
Reply.io + Attio FAQs
How does Master Inbox connect Reply.io and Attio?
It reads replies from your Reply.io mailboxes, tags them, and syncs the contact, conversation, and stage into Attio, automatically. It's the reply router between the two.
Do reps reply from Reply.io or Attio?
Neither. Reps reply from Master Inbox in one place, and the activity is logged to Attio without copy-paste.
Does it catch Reply.io replies that never reach Attio today?
Yes. Forwards, out-of-office, and new-address replies Reply.io drops are caught and pushed into Attio with context.
Does Master Inbox cover Reply.io's email and LinkedIn replies?
Yes. Reply.io runs email, LinkedIn, calls and SMS, and Master Inbox threads the email and LinkedIn replies per prospect into one queue, tagged by intent the second they land, so reps work a single inbox instead of switching between channels.
What does Master Inbox add on top of the Reply.io Inbox?
Master Inbox also reads the mailboxes themselves, so forwards, CC replies and new-address replies thread in next to your Reply.io replies. On top come saved views, label-triggered workflows, and one workspace per client with scoped client logins.
How does Master Inbox fit with Jason AI?
Reply.io keeps sending and sequencing, Jason AI included. Master Inbox is the reply layer: it labels every reply by intent, and Reply Agents answer, follow up and book meetings on your real calendar, human-in-the-loop first and autonomous when you are ready.
What lands in Attio when a prospect shows interest?
The contact is created the moment interest shows, and the full conversation syncs to the record with its intent tag. Reps keep replying from one inbox while Attio stays current on its own, with no copy-paste or brittle glue.
Do both LinkedIn and email threads reach Attio?
Yes. LinkedIn threads and email threads with the same prospect sync to the matching Attio record with their label and stage, so the person record shows the whole outbound conversation across channels.
Can agencies keep each client separate when syncing to Attio?
Yes. Master Inbox runs one workspace per client with its own mailboxes, labels and members, and client logins are scoped to their own inbox only, so client work stays isolated while your team sees every reply.
Go deeper
Keep reading
Similar pairings
See Reply.io, Master Inbox, and Attio working together on your real inboxes.
We wire up the whole flow and onboard your team. If the Reply.io to Attio handoff isn't tighter inside a week, you walk. No commitment, no credit card.
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