The email client for agency owners running fifteen client conversations at once.
Five client retainers, three shared inboxes, one personal Gmail. STAMP gives you the only view that actually matters: which seven threads need a reply today.
Hand off threads to account managers. Reply from the right alias automatically. End the week without owing fourteen people a status update.
No credit card · macOS · 28-second setup
The honest version
Three problems specific to agency owners.
Your inbox is the agency dashboard. And it's broken.
Every retainer leaks email. Status updates, change requests, invoice questions. Without triage, the loudest client wins — and that's almost never the most important one.
Account managers in their own clients. You're flying blind.
If your team isn't in the same triage system, you find out about churn risks at the all-hands. STAMP makes the queue visible without making it shared.
Reply-from-wrong-domain is an existential bug.
Sending from your gmail.com to a Fortune 500 client is a story you tell once. STAMP makes sure it doesn't happen.
How STAMP solves it
Three features. Mapped to your day.
STAMP didn't ship 47 features. The six it did ship cover this whole problem, from triage to send.
Every client domain. One window.
Connect agency@, hello@, founders@, and your personal — STAMP keeps them visually separate and operationally one keystroke away.
Hand a thread to your AM in one keystroke.
Press A to assign. Add a one-line note. Your account manager gets the thread with the original tag and your context attached. No 'see attached forwarded email'.
Frustrated tag for accounts at risk.
When a client's tone shifts over three replies, STAMP flags it. You step in before churn becomes a meeting.
Agency email is fundamentally a triage problem
Agencies don't have an inbox volume problem. They have an inbox priority problem. The retainer client who's about to renew should not be a peer to the cold lead who emailed once. The invoice question from your top account should not share a queue with a recruiter cold email.
Apple Mail and Gmail give you the same flat list for both. Folders and labels are a workaround, not a solution — they require constant manual sorting and they fall apart the moment a thread crosses a category boundary.
STAMP is built around triage as a first-class action. Every thread arrives tagged with a reason. VIP, Reply needed, Frustrated, Urgent, Invoice. The home view is the seven threads that actually need you today, ordered by signal that's measurable: who they are, how long they've waited, whether the tone has shifted.
The agency owner's morning
8:42 a.m. STAMP headline: 'Eight need attention. Three are flagged Frustrated.' You handle the three Frustrated threads first — that's how agencies don't lose accounts.
9:05 a.m. You hit A on two of the remaining five and assign them to account managers with a one-line note each. They get the original thread, your context, and the tag. They reply from the client domain, not their personal Gmail.
9:11 a.m. The last three you handle yourself. They go out from the right address. The client doesn't know that you used to need a sticky note to remember which Gmail tab they lived in.
9:14 a.m. You close STAMP. You're in design review by 9:15.
Things agency owners stop doing in week one
You stop having the 'who's on this account?' meeting. The thread itself shows the assignment, the history, and the tag. New AMs see the context immediately.
You stop the Sunday-night email sweep. The threads that needed you Monday morning are queued for Monday morning, with full context. The hard threads stop rotting in drafts.
You stop the wrong-account reply. Aliases just work. STAMP detects the originating domain and replies from it. The cognitive load of 'which account am I in' disappears.
You stop reading newsletters by accident. The 41 weekly industry digests live in a separate view. They don't share oxygen with the brief that needs a reply.
“I'm the bottleneck for fifteen accounts. STAMP made the bottleneck eleven minutes a morning instead of three hours.”
Early access user · Founder, design agency
FAQ
Three questions you'd ask first.
Can my account managers use STAMP too?+
Yes. Each AM gets their own license and their own connected accounts. Assignments and tags propagate. The whole agency runs on the same triage primitives without sharing a single inbox.
What about shared inboxes like hello@ or hi@?+
Connect them as a normal account. STAMP supports queue assignment, replies routed through the shared address, and per-thread ownership so two AMs don't reply to the same client.
Does STAMP integrate with our project management tool?+
Today STAMP focuses on the triage layer. Linear and Notion integrations are on the roadmap. The current keyboard surface lets you copy a thread link in one keystroke for cross-tool reference.
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