The Engine Pricing About Contact Join Waitlist
June 2026 Launch - Waitlist Open

Lock in $19/mo.
For life.

Every feature the $97/mo tools have. One price, forever.
Multi-inbox rotation, auto-warmup, bounce protection - all of it.
First 200 operators get this rate locked in permanently.

$19/mo

Early Adopter Price

Locked forever - first 200 spots only

✓  You are on the list

Check your inbox for confirmation. We will email you the moment doors open in June 2026.

No spam - launch announcement only

  189 of 200 early-adopter spots remain

Early Adopter Benefits

First 200 operators. Fixed price. Forever.

$19/mo

Locked in for life

Pay the same rate on day one as you will on day 1,000. The price has never changed since we started building.

200

Spots available

Hard cap on early-adopter pricing. When the 200th operator joins, the rate goes to whatever market price is at launch.

Jun 2026

Launch date

You get launch-day access. First batch of accounts activated before we open to the general public.

What you are getting

Every feature. No seat fees. No upsells.

Multi-inbox rotation

Up to 99 sending domains, auto-rotated so no single inbox gets flagged.

Auto warmup

Ramps each inbox from 5 to 100 sends/day over 30 days. Hands-off.

Bounce protection

Bad addresses purged before they damage your domain reputation.

Reply detection

Sequence stops the moment a lead replies. No awkward follow-up.

DKIM / DMARC

Full deliverability stack configured automatically. No DNS spelunking.

Unified inbox

Every reply from every domain, threaded by lead, one place.

10,000 sends/day

Full sending capacity from day one. No volume tiers.

No seat fees

One account. No per-user pricing. You and your team share one login.

All of the above - $19/mo - no asterisk

Reserve my spot ↑

From the builder

Tre Smith, builder of Core Mail Engine
"I built Core Mail Engine because I was tired of paying $97 a month for Instantly while running a one-person agency. The tool is done. It works. The waitlist is just me being careful about launch capacity before June."

Tre Smith

Builder - 20-year senior architect

About →

  Spots filling up

Secure your rate before doors open.

200 spots. $19/mo locked for life. June 2026.
After the cap, price goes to whatever market rate is at launch.

No credit card - confirmation email only