Pay-as-you-go · No tiers · No minimums

Start conversations.
Not campaigns.

BoomSauce is email infrastructure built for replies. First-touch messages go out as plain, human text — no links, no images, no trackers — because the only metric that matters is whether the recipient writes back. Usage-based pricing, deliverability handled end to end.

$20/yr
Domain + setup
$7.50/mo
Mailbox warmup
$1/1K
Sends

Three steps to your first reply.

Roughly 30 minutes of configuration, then a 21-day warmup window before production volume.

01

Add a domain

$20/year. We register it, wire DNS + SPF/DKIM/DMARC, spin up 5 mailboxes, and build you a free 1-page website so the domain looks real from day one.

02

Warm it up

$7.50/mailbox/month on our private CheddarInbox network. 21-day ramp to production volume. Real humans inboxes, not synthetic traffic.

03

Start conversations

$1 per 1,000 sends. Pay-as-you-go from your wallet. Every first email is plain, human, and designed to get a reply — no links, no CTAs, no images.

The tools aren’t the problem.
The playbook is.

Standard cold email advice — links, CTAs, images, calendar invites on the first touch — is the primary driver of spam-folder placement. The fix is structural, not a better subject line.

The old way
  • Tiered plans that gate features on day one
  • Customers handed a list of DNS records to configure alone
  • Warmup sold separately or not offered at all
  • First emails shipped with links, images, and trackers
  • Replies scattered across individual mailbox inboxes
  • Unused prepaid credits forfeited on cancellation
The BoomSauce way
  • Pay-as-you-go wallet with no minimum commitment
  • Full domain setup — DNS, authentication, mailboxes, and website
  • Warmup included as a first-class product, priced per mailbox
  • Zero links on first emails, enforced by the platform
  • Unified conversation inbox across every mailbox and domain
  • Unused balance refundable on request

Six principles the platform enforces.

Email is a conversation medium. The send gates, pricing model, warmup network, and account verification all enforce that — so the right behavior is the default behavior.

Replies are the metric

Open rates are vanity. Reply rates are the business. Every product decision — send gates, templates, inbox design — is oriented toward a response from a real person.

No links on the first send

Hyperlinks, images, and tracking pixels are the fastest path to the spam folder. BoomSauce strips them from every first-touch email. Once a recipient replies, standard formatting is available on follow-ups.

Warmup on a private network

Warmup runs through CheddarInbox — a private peer-to-peer network of real mailboxes that generate real engagement signals. No synthetic traffic, no public warmup pools.

Managed domains, end to end

Domain registration, DNS, SPF, DKIM, DMARC, five mailboxes, and a one-page website are configured in a single flow. No hand-off, no DNS copy-paste, no gaps in your footprint.

Usage-based billing

One wallet drives the whole account. No tiered plans, no monthly minimum, no long-term contract. Unused balance is refundable on request.

Verified volume accounts

Accounts requesting high-volume infrastructure undergo identity verification before provisioning. This protects deliverability across the platform for every customer.

Three line items. One wallet.

Usage-based pricing with no tiers and no minimums. Three common configurations and their total monthly cost are below.

Solo founder
30K/month
1 domain · 5 mailboxes
  • Domain + setup + website$1.67/mo
  • 5 mailboxes × warmup$37.50/mo
  • 30,000 sends$30/mo
Monthly total$69/mo
COMMON
Small team
150K/month
5 domains · 25 mailboxes
  • 5 domains$8.33/mo
  • 25 mailboxes × warmup$187.50/mo
  • 150,000 sends$150/mo
Monthly total$346/mo
Scale
500K/month
10 domains · 50 mailboxes
  • 10 domains$16.67/mo
  • 50 mailboxes × warmup$375/mo
  • 500,000 sends$500/mo
Monthly total$892/mo
Rate sheet
Domain
$20/yr

Registration + DNS + SPF/DKIM/DMARC + 5 mailboxes + free 1-page website.

Warmup
$7.50/mailbox/mo

Opt-in per mailbox. 50 emails/day on the CheddarInbox network. Cancel anytime.

SMTP send
$1.00/1K

Metered per email. No commitment. Negotiated rates for 1M+/month — contact sales.

Enterprise volume. Accounts requiring 50+ domains or sustained volume above 1,000,000 emails per month are provisioned after identity verification and a brief intake call. Custom pricing available. Contact sales →

Create your account

Signup is free. Fund your wallet to purchase a domain and start sending.

Email that reads like a person wrote it.

Built for teams that measure success in replies, not opens. Usage-based infrastructure, reply-first by default, deliverability handled end to end.

Create your account