EmailEngine

prompt not tested

When I wanted to build a Cordova based email app I realised that handling email protocol stuff inside the app makes things too difficult. So I built EmailEngine, a self hosted API server to translate REST to IMAP/SMTP

Monthly revenue

$18K/moVerifiedStripe-verified

≈ $214K a year at this rate

3.6× the category median

$18K/mo — top 24% of 2,819 businesses.

A typical business here makes $5K/mo — the median, not the average.

built solobootstrappedas a side project

Revenue was computed from actual payment records after the owner connected their own Stripe/Paddle/RevenueCat account to TrustMRR — not self-reported. The figure isn't our interpretation; we relay the record with its source.

“Indie Hackers'ta Stripe ile doğrulanmış gelir”

Indie Hackers record

Every figure we found

Figures reported in different sources over time. Instead of one number, we show all of them — you decide which to believe.

$16K2026-06-04blog.emailengine.app
“Today, Stripe tells me that EmailEngine is doing $15,991 a month, an annual run rate just shy of $200,000, across 204 paying companies.”
Email is the hardest easy problem, and I built a business in it
$14K2026-05-21podcasters.spotify.com
“So current revenue is 14,000 US dollars.”
How I Built a $14,000/Month SaaS with 0 Employees
$6.6K2024-02-27docs.emailengine.app
“The current MRR for EmailEngine is 6100€ and grows steadily, which in Estonia, where I live, allows me to pay myself a decent salary so that I can work on my project full-time.”
I turned my open-source project into a full-time business

Paste this into Claude Code as-is. It carries the scope, the stack and the definition of "done".

# EmailEngine benzeri bir ürün — v1 kurulum komutu

Bu metni olduğu gibi Claude Code'a yapıştır. Sonunda çalışan bir iskelet olacak.

★ ŞİMDİ KODU YAZ. Plan anlatma, özet çıkarma, onay isteme — doğrudan dosyaları
  oluştur ve komutları çalıştır. Karar gerektiren yerde en basit seçeneği al,
  tek satırda not düş ve DEVAM ET. Sonunda çalışan bir proje bırakmış olmalısın.

## BAĞLAM
Kuracağın şey: EmailEngine is an email client but for apps, not people.
Çözdüğü problem: When I wanted to build a Cordova based email app I realised that handling email protocol stuff inside the app makes things too difficult. So I built EmailEngine, a self hosted API server to translate REST to IMAP/SMTP.
Gerçek örnek: emailengine.app — ödeme sağlayıcısının API'sinden doğrulanmış aylık gelir $18K.
Referans ürün: https://emailengine.app — **kopyalama**, nasıl çözdüğünü anlamak için bak.
Gerçek işin ekip boyutu: kurucu tek başına — ölçek beklentini buna göre kur.

The rest is for Academy members

The full master prompt, the 30-day roadmap and asking the bank questions are open to Digital Academy members. The evidence — figure, source and quote — stays public.