Cold email reply management should not be chaos
Outreach teams run many sending accounts for deliverability, then lose replies across all of them. We built MyColdInbox to fix the part nobody else was solving — the inbox after the send.
Built by people who lived the problem
Running cold email at scale means running many inboxes. It is the right call for deliverability — and it quietly creates an operational mess. Replies scatter across dozens of logins, nobody has the full picture, and hot leads cool while a response waits in an inbox no one opened.
Sending tools solved the outbound side beautifully. The reply side was left to memory, spreadsheets, and a browser full of tabs. We thought outreach teams deserved a real operational layer for that — one place to read, assign, and close every reply, with the whole team working from the same view.
MyColdInbox is built by Clustox LLC, the team behind it. It connects Gmail, Outlook, and IMAP accounts into a single shared workspace, so no reply is ever invisible again.
What we believe
The principles that shape every decision we make about the product.
Purpose-built, not repurposed
We did not adapt a help desk for outreach. Every part of MyColdInbox is shaped around how cold email teams actually work — many inboxes, fast follow-up, shared ownership.
Visibility over guesswork
Teams lose deals to replies nobody saw. We believe every response should be visible to the whole team, with a clear owner, the moment it arrives.
Built to scale with you
From a solo founder to an agency running hundreds of inboxes, the same workspace grows with you — no rebuild, no per-inbox penalty.
Join us in early access
Be one of the first teams to manage every cold email reply from one shared workspace.
Get Early Access — Free