inboxes.

For agencies

Email Deliverability for Agencies: Monitor Every Client Domain, Catch Issues Before the Client Does

The worst way to learn a client hit a blacklist is from the client. Inboxes gives agencies a workspace per client, monitoring on every domain, and white-label reports that make the invisible work visible.

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Placement test live

Inbox placement

54%

··%

· ·

Authentication

SPF · DKIM · DMARC

checking 130+ blacklists

Sample data. Seed results are estimates, not guarantees.

Email deliverability for agencies, defined

Email deliverability for agencies is the same discipline as for a single brand, multiplied by every client and made worse by accountability: when placement drops, the agency owns the question whether or not it owns the cause. Inboxes is built for that multi-domain reality. Each client gets its own workspace with its own domains, placement tests against live mailboxes at Gmail, Outlook, Yahoo, iCloud, GMX, and Zoho, and continuous monitoring of sender reputation, 130+ blacklists, and SPF, DKIM, and DMARC health with report parsing. Alerts fire the day something moves, so you open the conversation instead of responding to it. The Agency plan at $349 per month adds white-label PDF reports, so the monthly deliverability summary goes out under your brand, not ours. Seed results are directional estimates and nobody can guarantee placement; what you can guarantee clients is that someone is actually watching.

Why it fits

Built for the way you send

A workspace per client, not a spreadsheet per client

Keep each client's domains, tests, and history cleanly separated. Onboarding a new retainer is adding a workspace, not rebuilding a monitoring stack, and offboarding is just as clean.

Be the one who catches the blacklist hit

When a client domain lands on one of 130+ blacklists or DMARC failures spike, you get the alert first. "We caught this overnight and here is the fix" is the email that renews retainers.

White-label reports that justify the retainer

On the Agency plan, placement and monitoring reports export as PDFs under your logo. Deliverability work is invisible when it goes well; the report is how clients see it anyway.

// Who this fits

Email, retention, and lifecycle agencies and independent consultants managing sending domains for multiple clients, who are accountable for placement either way and would rather see problems first.

How testing works

Deliverability for other senders