Buy the domains, let Infrabox publish SPF, DKIM, DMARC and MTA-STS in the same pass, then hand ramped sending identities to whatever sequencer your reps already live in.
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Minutes to first send
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Startups sending through Infrabox
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Inbox placement by day 7
The gap between signing up and your first reply is mostly DNS.
Nothing in a five-person team's week is worse spent than a zone file.
One wrong character in a TXT record
SPF, DKIM, DMARC and MTA-STS each fail quietly: a bad include or an unpublished selector shows up as spam-foldering, not as an error.
Mailboxes created one ticket at a time
Thirty sending identities by Friday is a week of clicking when every account, alias and signature is set by hand.
Nobody to hand email ops to
A team of five can't staff a deliverability engineer, so the job lands on whoever last touched the DNS.
Day zero to a fully ramped fleet, on the clock.
Domains resolve, records verify, ramp starts. Most teams are running real outbound before their first payroll.
Domains bought, DNS published
SPF, DKIM, DMARC and MTA-STS go live automatically the moment you buy the domain.
First mailboxes provisioned
Bulk-create mailboxes with real names and signatures, ready for warmup on a private peer network.
Warmup curve climbing
Send volume ramps on schedule while reputation is watched send by send, not day by day.
Fleet cleared for outbound
Mailboxes cross the inbox-placement threshold and hand off straight into your sequencer.
Median time to first send: 6 minutes
Provisioning, authentication and ramp in one job.
None of this needs a zone file open in a second tab.
Domain and DNS in the same pass
Buy a domain and SPF, DKIM, DMARC and MTA-STS are generated and published before you've finished picking mailbox names.
A roster, not a queue
Set a pattern and a count, and the accounts, aliases, photos and signatures are created together in minutes.
Ramp curves a receiver reads as growth
New mailboxes send and reply across a private peer network on a curve that clears filters before your first real campaign.
0 tickets opened this week
No email-ops owner required
Health checks, drift detection and repair run on their own, so the job never lands on an engineer you don't have yet.
What founders check first
No. Buy the domain here or point an existing one at us, and every record is generated, published and re-verified without you opening a zone file.
Most teams have mailboxes provisioned and ramp started within ten minutes of signing up.
Import them. Infrabox reads the existing records, flags anything missing or misconfigured, and republishes the set.
Yes. You can provision and warm mailboxes before you add a payment method.
No. Infrabox owns domains, mailboxes and deliverability, then hands sending identities to whatever sequencer your reps use.
Time to first reply is the only speed that counts.
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Median minutes to first send
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Days to a fully ramped fleet
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Startups launched on Infrabox
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Inbox placement by week one
Built for teams shipping ahead of their headcount
Free until the first send
Provision a domain and a mailbox with no card on file.
Credentials your sequencer expects
SMTP and IMAP details are generated per mailbox and export straight into the tool you already run.
Billed on mailboxes, not seats
You pay for sending identities in use, so adding a teammate costs nothing.
Alerts where you already look
Domain health events arrive by email or webhook the moment something needs a human.
Scriptable from day one
Every console action has a matching REST endpoint if you'd rather provision from code.
Existing domains, audited on import
Bring what you already own. Infrabox reads the records and republishes what's wrong or missing.
“Forty mailboxes were provisioned, ramped and handed to our sequencer before we'd finished getting the reps logged into it.”
Have a ramped fleet by the end of the week.
Start free, publish your first domain's records in minutes, and hand warmed mailboxes to your sequencer by Friday.
Built for other teams too