Starter
Small businesses, 1 sending domain, low volume
- ✓ 1 sending domain, 1 IP
- ✓ Hardening baseline (Lynis ≥ 75)
- ✓ Self-Service Toolkit (7+ scripts)
- ✓ Operating manual
- ✓ 14-day Q&A window
- ✓ Full legal framework
You provide a server. I install a production-ready platform on it — then hand it over completely.
One-time setup. No monthly subscription, no lock-in, no data exposure to a third-party SaaS. You own everything — domains, mailboxes, data, and the toolkit to run it.
Not "install and disappear." You get a hardened system, the toolkit and docs to run it, a legal framework, and a Q&A window.
Listmonk + Postfix + OpenDKIM + monitoring stack on your servers.
Lynis Hardening Index ≥ 75, verified at delivery.
SPF, DKIM, DMARC all configured and verified.
7+ MIT-licensed scripts — add domains/IPs, rotate DKIM, check deliverability, backup/restore. Yours to keep.
~15 pages, English — daily ops, troubleshooting, security best practices.
Email questions about Toolkit usage and documentation. No system access by me.
MSA, DPA (EU clients), AUP, Toolkit License with Da-eun Addendum.
GPG-signed git history of the setup, available for compliance.
| SaaS | Cheap freelance | This service | |
|---|---|---|---|
| Cost model | Monthly subscription | $25–100 one-time | $800–1,800 one-time |
| You own | License only | The deployed system | Everything: system, toolkit, docs |
| Data location | SaaS servers | Your servers | Your servers |
| Security baseline | Provider-managed | Often unclear | Lynis Index ≥ 75, verified |
| Lock-in | High | Low | None — toolkit + docs = independence |
~1 week from VPS handoff to delivery. Paid once, in USD via Payoneer, Wise, or wire.
Small businesses, 1 sending domain, low volume
Growing businesses, multi-domain, moderate volume
Established businesses, 5+ domains, advanced needs
You submit an intake form. I accept, request more info, or decline. If accepted: contract signing + setup fee.
You provision a fresh Ubuntu 24.04 LTS VPS, add my SSH key, and provide a scoped DNS API token.
Pre-flight verification, mail stack install, DNS authentication, security hardening, Toolkit deployment, test sending.
Signed acceptance report, I revoke my access, and the 14-day Q&A window starts.
Email-only questions about Toolkit and documentation for 14 days. Then the engagement is complete.
Those are SaaS — ongoing subscription, your data on their servers, pricing that scales with volume. I install a comparable platform on YOUR servers, you pay once, you own it. After delivery you have no monthly fees from me.
After the 14-day Q&A window the engagement is complete. The Self-Service Toolkit and operating manual cover most operational needs. For significant new work, contact me for a separate engagement (typically $200–500 depending on scope).
Yes. The toolkit includes add-domain.sh, which automates SPF/DKIM/DMARC setup for new domains. No need to engage me for routine additions.
Postfix (MTA) + Listmonk (campaign UI) + rspamd (DKIM signing & spam filtering) + Prometheus + Grafana + Loki + Alertmanager + Caddy, PostgreSQL backend. All deployed via Ansible on Ubuntu 24.04 LTS.
If you have EU subscribers (or you’re EU-based), yes — per GDPR Article 28. Korea has an EU adequacy decision (2022), so no SCC is needed. The DPA is short and limited to the setup phase.
Lynis is a Linux security audit tool. I aim for Hardening Index ≥ 75 at delivery; the report becomes part of your handoff package as a security baseline. Custom hardening to a higher index is available as an add-on.
Send your use case, target volume, recipient location, and preferred timeline. You’ll get an intake form within one business day.