Order received. Check your email for the receipt. We will be in touch within 1 business day with your domain plan, and your mailboxes are provisioned within 2 business days. Questions: contact@reinbox.org

Pick your infrastructure, pay per mailbox

Domains, DNS, mailboxes, and warmup, set up and managed for you. Every mailbox includes full SPF, DKIM, and DMARC configuration, warmup, and ongoing deliverability monitoring. Mailboxes are month to month and you can cancel whenever. Setup is a one-time charge, and domains are $15 each with the first year included. We register them in your name and hand them to your own Dynadot account, so you own the renewal.

  1. 1Infrastructure & Quantity
  2. 2Setup & Domains
  3. 3Your Details
  4. 4Cold Email Tool
  5. 5Review & Checkout
Choose your infrastructure

Pick the platform your mailboxes run on, then set how many you need. Pricing updates as you go.

Reliable and widely trusted. 30 emails per day per mailbox, 3 mailboxes per domain. Setup is $3 per mailbox, charged once.

mailboxes
Quick set:

300
Emails per day
4
Domains you buy
$50
Per month, ongoing
$140
Due today

Setup information

Tell us about your business so we can configure your mailboxes.

Used for domain forwarding and to generate similar domain suggestions. We create lookalike sending domains and forward them to this address, so a spam complaint never touches your real site.
First and last name only. Combine a multi-word surname into one word. This appears as the From name on every email.
Sender profile photo. A professional headshot appears in Google Workspace and when recipients view your emails, and it measurably helps engagement. We will email you to collect one after checkout, so you do not need it now. High quality, well lit, face centred, plain background.
Choose a setup option

How would you like to handle domain management?

Your details

So we can send your credentials and receipts. Nothing is charged on this step.

Where your credentials and receipts go.
Cold email tool setup

How would you like us to handle your cold email integration?

We create your Instantly account

We set up a dedicated Instantly account with its own login, connect every mailbox we build, then hand the account over to you in full. The $47 covers your first month of Instantly. Billing after that is between you and Instantly.

What is included
  • A new Instantly account created for you
  • All your mailboxes connected automatically
  • Full account ownership transferred to you

Select your cold email tool

Which tool do you send from? We upload your mailboxes into it for you.

In Instantly: Settings, then Integrations, then API. Smartlead and Email Bison are in Settings under API.
Only give us what we need. An API key is safer than a password because you can revoke it without changing your login. Prefer the key, and leave the password blank unless your tool has no API. Whatever you enter is sent to our CRM so our team can do the upload, and it is not stored with your payment. Rotate the key once your mailboxes are connected. You can also skip both and send them to us after checkout.

You connect them yourself

We send SMTP and IMAP credentials for every mailbox once warmup is done. They work in any cold email tool. Nothing else is needed from you now.

Credentials only

We build and warm the mailboxes, send you the credentials, and do not touch any sending tool. Nothing else is needed from you now.

Review your order

Confirm this is right, then we hand you to Stripe for secure payment.

Setup is charged once, at order. Domains are $15 each for the first year and are registered in your name. Mailboxes are month to month, cancel any time.

The three options side by side

OptionMonthlyOne-time setupEmails/day eachMailboxes per domainBest for
Google Workspace$5/mailbox$3/mailbox303Most campaigns, familiar and reliable
Premium SMTP$5/mailbox$3/mailbox303Scaling or high-value campaigns
Microsoft 365$49 per 49$10/domain549Spreading sends across many identities

Domains are $15 each on every option, first year included, and are not part of the prices above. You need one domain per 3 mailboxes on Google Workspace and Premium SMTP, and one per 49 on Microsoft 365. Microsoft 365 works out to $1 per mailbox, but each mailbox sends 5 emails a day instead of 30, so a block of 49 sends 245 a day. Slide the calculator above and it will price the same daily volume on each option across a full year, including when the cheaper-looking one is the wrong call.

Want the campaigns run for you too, not just the infrastructure? See our managed plans.

118,781+
Cold emails sent through this setup
100K+
Emails per month across our accounts
$1.39M
Attributed client pipeline
<1%
Bounce rate on verified lists

Everything between "I want to send cold email" and a working inbox

This is the part most people get wrong, and the part that decides whether your emails land. We do all of it, then keep watching it after handoff.

Domains that are yours to keep

We pick and register sending domains that look like your business without being your business domain, at $15 each with the first year included. They are registered in your name and transferred to your own Dynadot account once DNS is verified, so you hold them outright and renew them yourself.

Full DNS authentication

SPF, DKIM, and DMARC set correctly the first time, plus MX and a dedicated tracking subdomain. No DNS dashboard for you to touch or misconfigure.

Mailboxes provisioned and ready

Google Workspace, Premium SMTP, or Microsoft 365 mailboxes on your new domains, sized to the daily volume you actually need rather than a number we picked.

Warmup that actually runs

Every mailbox enrolled in warmup at creation and held out of cold sending until it has earned the volume. Two to three weeks, no shortcuts.

Ongoing deliverability monitoring

We watch bounce rates, spam complaints, and domain reputation after handoff, and tell you when something needs attention instead of waiting for you to notice.

Credentials you can take anywhere

Standard SMTP and IMAP credentials delivered on handoff. Plug them into Instantly, Smartlead, Lemlist, or whatever you run. No lock-in to our software.

Six steps, and only two of them are yours

Here is exactly what happens from the moment you move the slider to the moment your first cold email lands. No calls, no back and forth, no waiting on a proposal.

STEP 01 · YOU

Size your order

Pick Google Workspace, Premium SMTP, or Microsoft 365, then set how many mailboxes you need. You see your emails per day, how many domains that requires, what is due today, and what you pay monthly after that. Ten mailbox minimum.

STEP 02 · YOU

Check out

You register, tell us your sender name and which tool you send from, then review the order and Stripe takes the payment. The first invoice covers your first month, the one-time setup, and the first year of domains. Under two minutes.

STEP 03 · US

We pick and register your domains

We choose sending domains that resemble your business without being your business domain, so a spam complaint can never touch your primary. Registered in your name at $15 each, first year included, then transferred to your own Dynadot account.

STEP 04 · US

We configure DNS and build the mailboxes

SPF, DKIM, and DMARC set and verified on every domain, then mailboxes provisioned against them. This is where most self-built infrastructure quietly fails. Done within 2 business days of payment.

STEP 05 · US

Warmup runs

Every mailbox warms for 2 to 3 weeks before it sends a single cold email. This is the step everyone skips and everyone regrets. We monitor reputation the whole way through.

STEP 06 · US

You get credentials

SMTP and IMAP details land in your inbox, ready to paste into Instantly, Smartlead, or whatever you send with. We keep monitoring deliverability from there for as long as you are on.

Realistic timeline to first cold send: about 3 weeks, almost all of it warmup. Anyone quoting you same-day cold sending is selling you a spam folder.

What you pay and when: everything one-time is charged at checkout (setup plus the first year of domains), and your monthly starts the same day and bills every month after. Once DNS is verified we move the domains into your own Dynadot account, so renewals are yours and you are never dependent on us to keep them. Mailboxes are month to month, cancel any time.

Infrastructure is easy to buy and easy to get wrong

Most providers sell mailboxes by the unit and leave the decisions that actually matter to you: which provider fits your volume, how many mailboxes you really need, how fast to ramp, and what to do when placement drops. Those decisions are the difference between the inbox and the spam folder.

We are a cold email agency for real estate investors before we are anything else. 118,781 emails sent to 116,244 distressed homeowners. A 0.51% reply rate. $1,396,000 in attributed pipeline. Those numbers are public, including the ones that make us look bad, in our full data breakdown.

That experience is what you are buying here. We know what happens when a campaign jumps to full volume on a domain that is still warming, because we measured it across five client accounts and watched open rates fall to 30.4%. We know a 4% bounce rate traces back to unverified lists rather than bad copy, because we made that mistake and wrote it up instead of hiding it.

The honest pitch: we do not manufacture mailboxes, we source them, size them to your actual volume, configure them correctly, and stay responsible for whether they work. If the cheaper-looking option is wrong for you, we will say so before you buy it, not after.

Common questions

Because a deliverability problem on your primary domain takes your real business email down with it. Cold outreach carries bounce and complaint risk that no amount of good copy eliminates. Dedicated sending domains isolate that risk, so a bad list never touches the inbox you run your company from.

Divide your target daily send volume by 25-30 emails per mailbox per day, then group roughly 3 mailboxes per domain. A campaign targeting 300 emails a day needs about 10-12 mailboxes across 3-4 domains. Our free infrastructure calculator runs the math for you, or just tell us your volume in the order form and we'll size it.

Domains and mailboxes are provisioned within 2 business days. Warmup then runs 2-3 weeks before any cold volume goes out. Anyone promising you cold sends on day one is skipping the step that determines whether your email lands in the inbox or the spam folder.

Yes. The domains are registered in your name at $15 each with the first year included, and we transfer them into your own Dynadot account once DNS is verified. You hold them outright and renew them directly. You are never locked in by hostage infrastructure.

Yes. You get standard SMTP and IMAP credentials that work with Instantly, Smartlead, Lemlist, Reply, and any platform that accepts custom mailboxes. You are not locked into our software.

We are not primarily an infrastructure vendor, we are a cold email agency for real estate investors, with 118,781 sends and $1,396,000 in attributed client pipeline behind us. Cheaper providers sell you a quantity of mailboxes and leave the sizing, provider choice, ramp schedule, and troubleshooting to you. We make those calls for you and stay responsible for the result, including telling you when the cheaper option is the wrong one for your volume.

The mailboxes are month to month with no contract. Cancel any time and the domains stay yours, because they are already in your Dynadot account. The setup fee covers work already done and is not refundable once the domains are registered.

Need something the calculator doesn't cover?

The calculator above handles orders up to 100 mailboxes and checks out instantly. Use this form instead if you need more than that, want to bring domains you already own, or want the campaigns run for you and not just the infrastructure. We come back within one business day.

This form does not charge you. We confirm your build plan and send a payment link before anything is registered. For a standard order of 100 mailboxes or fewer, the calculator at the top of this page is faster and checks out immediately.