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Keila
AGPL-3.0Keila is an open-source newsletter tool that replaces hosted marketing suites with self-hosted list management, block editing, and direct SMTP delivery.
Overview
Keila is a self-hosted newsletter platform built on Elixir and Phoenix that manages subscriber lists and email campaigns without third-party tracking. It pairs a block-based visual editor with direct transactional mailer integrations so teams can dispatch broadcasts directly from their own infrastructure.
Where Keila fits
Traditional email marketing services package audience storage, visual templating, and SMTP infrastructure into a single vendor account, charging increasingly steep monthly rates as subscriber lists expand. Keila separates list ownership and newsletter creation from the mail delivery layer. Instead of locking contact records into a proprietary cloud database, it runs on an organization's own server backed by PostgreSQL, giving teams complete custody of their contact lists and communication history. For delivery, it routes outbound dispatches through transactional providers like Amazon SES, Mailgun, Postmark, and SendGrid, or through a standard SMTP server.
From a day-to-day workflow perspective, Keila targets direct broadcast publishing rather than automated multi-channel marketing. Content creators can write in Markdown, raw text, or a visual block editor, using Liquid templating to dynamically personalize messages with subscriber data. Marketing and operations teams can configure double opt-in signup forms, segment contacts with custom metadata queries, and manage multiple projects under unified administration. By skipping intrusive behavioral trackers, lead-scoring funnels, and complex ad-network integrations, Keila allows teams to produce clean, GDPR-compliant newsletters without technical clutter or escalating per-contact fees.
What it does well
- Flexible authoring modes allow non-technical writers to build layouts with a visual block editor while technical users can write in Markdown or plain text.
- Dynamic message personalization powered by Liquid templating lets senders insert subscriber tags, custom attributes, and conditional text blocks into campaign copy.
- Native delivery provider adapters support Amazon SES, Mailgun, Postmark, SendGrid, and standard SMTP relays without external middleware or custom plugins.
- Built-in data privacy controls allow operators to disable email open and click tracking with a single toggle, simplifying European data privacy compliance.
- Visual and query-based segmentation tools enable operators to filter recipients by subscription date, tags, and arbitrary custom data fields.
