Your outbound does not have a copy problem.

Email does not break loudly. It stops being read.

One domain, 14,687 emails, six replies.

From an audit of a 689-mailbox fleet across 199 sending domains. One domain had been listed and nobody knew. It kept sending for weeks.

Nothing in their sending platform showed any of it. The domain was not broken in a way a dashboard reports. It was broken in a way only a DNS and blocklist check finds.

Every domain you send from, checked every hour.

Not a report you run when something feels wrong. A standing check on the whole estate, with the finding reaching you the hour it appears.

You pay me to keep your email landing in the inbox.

Outbound does not break once. It breaks again, continuously, and that costs you replies every month you do not have someone on it.

Two halves: holding what you have, and growing what it can carry.

Holding it — a fleet does not stay fixed

Domains get listed while you sleep. Mailboxes burn out and keep counting as capacity. Someone adds a domain and nobody authenticates it. A DNS record gets edited and alignment quietly breaks. None of it announces itself.

Listings worked the day they appear

Cause found, fixed, removal filed, campaigns moved onto clean domains while it recovers. Not written up for you to read at month end.

Authentication kept passing, not just set once

SPF, DKIM and DMARC re-checked on every sending domain. A record edited by someone else or a tenant that quietly stopped signing is caught the same hour.

Growing it — more volume that still lands

This is the half most teams get wrong, because adding capacity is exactly what burns a fleet. Send more from the mailboxes you have and they burn. Add domains in one batch from one registrar on one nameserver and blocklists group them, so one listing takes the whole batch with it.

Capacity built ahead of when you need it

Warmup is weeks of calendar time, not work. New domains bought, authenticated, aligned and warmed on a schedule set against your volume plan, so the capacity exists before the campaign does.

New domains spread, not batched

Registrar, nameserver and registration date varied deliberately. A fleet that looks like one purchase gets treated like one purchase the first time any of it is listed.

Per-mailbox volume held under the burn line

Ramped as the estate grows, pulled back when a domain shows strain, so throughput rises without the reply rate falling to pay for it.

Burned capacity replaced before it is missed

Rotated out and new domains ramped in behind them, so total sending capacity stays level or climbs instead of sagging as the old estate dies.

You keep every domain and every mailbox. Nothing is bought in my name, and nothing is held back if you stop.

One monthly fee. No setup fee, no contract.

Higher volume moves you up a tier, which is why the first question is always how much you actually send.