---
title: "LetterSpace"
pageType: "tool-profile"
schemaVersion: "1.0"
snapshotId: "tv-20261027-b36ae5d5f795"
generatedAt: "2026-10-27T07:03:11.000Z"
canonicalUrl: "https://toolvitals.com/tools/letterspace/"
jsonUrl: "https://toolvitals.com/api/agent/tools/letterspace"
indexable: true
---

# LetterSpace

Self-hosted open source newsletter platform for managing subscribers and sending campaigns

## Decision context

- Status: critical
- ToolVitals score: 37/100
- Health score: 45/100
- Shipping score: 25/100
- Score mode: verdict
- Data confidence: 90/100
- Source coverage: 80/100
- Last evidence check: 2026-10-27

## Classification

- Use case: Email Marketing (email-marketing)
- Category: Marketing (marketing)
- Tool mode: Source-visible project
- Openness: OSI-approved OSS
- License: MIT
- Tags: open-source, email-marketing, newsletter, self-hosted, subscriber-management, campaigns

## Public repository signals

- Repository: [dcodesdev/LetterSpace](https://github.com/dcodesdev/LetterSpace)
- Stars: 103 (adoption context only)
- Forks: 2
- Open issues: 9
- Last commit date: 2026-10-03
- Releases in 90 days: 0

## Source receipts

- [Official website](https://letterspace.app/) — checked 2026-10-27
- [Source repository](https://github.com/dcodesdev/LetterSpace) — checked 2026-10-27

## Discovery status

- Search indexable: yes
- Reason: sufficient tool evidence

## Interpretation limits

- ToolVitals scores summarize bounded public maintenance, shipping, openness, and evidence signals. They are not user-review ratings.
- GitHub stars and related popularity metrics are adoption context, not quality evidence.
- Missing values mean not collected or not confidently established; they do not mean zero.
- Public signals do not prove security, uptime, support quality, customer satisfaction, or production suitability.
- Verify material decisions against the linked first-party sources and your own requirements.