Layer 3 · self-hosting reality check
What it actually takes to self-host listmonk
The docs say 256 MB. In practice you want 1 GB. Here is the honest version — real requirements, real monthly cost, what you will be maintaining, and the one thing that catches people out.
Usually reached from Mailchimp alternatives, where listmonk is one of the picks.
Wondering whether you need to at all? Is Mailchimp free? — what the free tier actually allows, and where the wall is.
| RAM — documented minimum | 256 MB |
|---|---|
| RAM — what it really needs | 1 GB |
| CPU | 1 vCPU |
| Disk | Subscriber list and campaign history — small |
| Monthly cost | $6/mo plus SMTP relay costs, against Mailchimp pricing that scales per subscriber |
| Setup time | 1 hour for the app, plus the real work below |
| How you install it | single Go binary plus PostgreSQL |
| Ongoing maintenance | Low for the app. Deliverability is the ongoing job. |
| Where it stops scaling | Hundreds of thousands of subscribers. Your relay's limits bind long before Listmonk's. |
The thing that catches people out
The application is the easy part; email deliverability is the hard part and it is not optional. You need SPF, DKIM and DMARC configured correctly, a warmed sending reputation, and a relay that will not get you blocked. Sending from a fresh VPS IP puts you straight in spam folders. Use a relay — Amazon SES, Postmark, or similar — and treat Listmonk as the campaign manager, not the sender.
When not to self-host listmonk
You have no appetite for deliverability work. This is the one on this list where the self-hosted saving hides real specialist effort.
Every guide here carries this section. A site that only ever tells you to self-host is selling something — the useful answer is sometimes no.
Other Layer 3 self-hosting guides
Common questions
- How much RAM does listmonk actually need?
- 1 GB in practice. The documented minimum is 256 MB, which is the figure at which the process starts rather than the figure at which it works under real use. 1 vCPU alongside it.
- What does self-hosting listmonk cost per month?
- $6/mo plus SMTP relay costs, against Mailchimp pricing that scales per subscriber This is commodity VPS pricing and excludes your time, which is the larger cost for most people — budget for low for the app. Deliverability is the ongoing job.
- How long does it take to set up listmonk?
- 1 hour for the app, plus the real work below, via single Go binary plus PostgreSQL.
- When should I NOT self-host listmonk?
- You have no appetite for deliverability work. This is the one on this list where the self-hosted saving hides real specialist effort.
- What is the most common mistake when self-hosting listmonk?
- The application is the easy part; email deliverability is the hard part and it is not optional. You need SPF, DKIM and DMARC configured correctly, a warmed sending reputation, and a relay that will not get you blocked. Sending from a fresh VPS IP puts you straight in spam folders. Use a relay — Amazon SES, Postmark, or similar — and treat Listmonk as the campaign manager, not the sender.