listmonk

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

23 articles 20.8k View on GitHub ↗
23 articles
How Listmonk Implements List-Unsubscribe-Post Headers for RFC 8058 Compliance

Listmonk enables one-click unsubscribes with RFC 8058 List-Unsubscribe-Post headers. Learn how this feature ensures compliance and improves user experience by default.

internals
May 19, 2026
ListMonk Admin API Security Considerations: Authentication, Authorization & Best Practices

Secure your ListMonk admin API with bcrypt API keys, role-based permissions, and session cookies. Discover essential production security best practices like TLS and rate limiting.

best-practices
May 19, 2026
How to Configure Sliding Window Rate Limiting for High‑Volume Campaigns in Listmonk

Configure sliding window rate limiting in Listmonk to manage high-volume campaign traffic efficiently. Set app.message_sliding_window to true and define duration and rate in config.toml.

how-to-guide
May 19, 2026
Understanding the Import/Export Subsystem for Subscribers in Listmonk

Explore Listmonk's import/export subsystem. Discover how goroutines and query iterators handle bulk CSV/ZIP imports and privacy-aware JSON exports for subscribers.

deep-dive
May 19, 2026
How to Extend Listmonk with Custom Messenger Backends: A Complete Implementation Guide

Learn to extend Listmonk with custom messenger backends by implementing the Messenger interface and registering it with the Manager. Get the complete guide now.

how-to-guide
May 19, 2026
Listmonk's Database Migrations Approach: Pure Go Schema Management

Discover Listmonks pure Go database migrations approach. Learn how sequential functions manage schema changes idempotently against PostgreSQL without external tools.

internals
May 19, 2026
How Listmonk Handles Template Rendering with Go Templates: Complete Technical Guide

Discover how Listmonk handles template rendering with Go templates. Learn about its pipeline for auto-escaping HTML, Markdown conversion, and custom helpers.

deep-dive
May 19, 2026
How to Implement Transactional Email Sending via the Listmonk API

Implement transactional email sending with the Listmonk API. Learn how to POST to /api/tx with your API key and template ID to queue and deliver messages.

api-reference
May 19, 2026
How Listmonk Handles POP3 Bounce Processing: A Technical Deep Dive

Learn how Listmonk processes POP3 email bounces. Discover its methods for connecting to mailboxes, parsing MIME messages, extracting SMTP codes, and managing subscriber status.

deep-dive
May 19, 2026
Internal Structure of Listmonk's Bounce Manager: Architecture and Data Flow

Explore Listmonk's bounce manager architecture and data flow. Learn how it ingests, processes, and persists delivery failure events using a modular, queue-based system.

internals
May 19, 2026
How Subscriber Querying Works in Listmonk: Deep Dive into SQL Architecture and Security

Discover how Listmonk safely executes subscriber queries using SQL architecture, HTTP filtering, and read-only transactions. Learn about its robust security measures.

deep-dive
May 19, 2026
How Subscriber Segmentation Works in Listmonk: PostgreSQL-Powered Filtering

Discover how Listmonk leverages PostgreSQL for powerful subscriber segmentation. Learn how to filter subscribers using SQL expressions and JSON attributes to refine your campaigns.

deep-dive
May 19, 2026

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