Open-source Email & SMS marketing
you host yourself
AI Campaign Architect
Strategic Email + SMS campaign planner that creates your plan, logic, and forecasts — before you send your first message.
Business context → Audience → AI Strategy → Forecast & Export
Message timeline, goals (education/sales/reminder) and IF/THEN logic
Industry benchmarks + sliders that calculate ROI in real-time

Why NetSendo?
Built for developers who want control, privacy, and flexibility without sacrificing modern features.
How it works
Deploy in Docker
Run docker compose up. NetSendo starts in seconds with Postgres and Redis included.
Add Mailbox
Connect your SMTP server, Gmail, or API provider like SendGrid/Mailgun.
Plan & Launch
Design campaign strategy in Campaign Architect, export to campaigns and launch.
Let AI write your
campaigns in seconds
Stop staring at a blank screen. Netsendo's AI assistant can generate engaging subject lines, write full email body content, and even take voice dictation to craft your message.
Multi-Model Support
Use OpenAI GPT-4o, Anthropic Claude 3.5, or Google Gemini. Your API key, your rules.
Voice Dictation
Just speak your ideas. The AI will transcribe and format them into a professional newsletter.

┌─────────────────┐ STDIO ┌─────────────────┐
│ Claude/Cursor │ ◄────────────► │ MCP Server │
│ (AI Client) │ │ (Docker/npx) │
└─────────────────┘ └────────┬────────┘
│
HTTP/S
│
┌────────▼────────┐
│ NetSendo │
│ (Your inst.) │
└─────────────────┘Supported AI Clients
Example query
"Show my mailing lists and add a new subscriber jan@example.com to Newsletter"
Manage NetSendo with
natural language
Connect Claude, Cursor, or VS Code to your NetSendo instance. Ask questions, manage subscribers, and send messages — all through conversation with AI.
Natural language
Ask 'How many subscribers do I have?' or 'Send an email to John'.
No code required
No need to know the API — AI handles it for you.
Real-time operations
Direct operations on your NetSendo instance.
Experience NetSendo Live
Don't just take our word for it. Log in to our live demo instance and explore the platform's capabilities firsthand.
This is a public demo instance. Data is reset every 24 hours.
Connect with your tools
NetSendo plays nicely with the tools you already use. Orchestrate workflows with n8n and connect any AI model.
Latest Updates
View all releases- Subscribers can be filtered by status (#31)
- The MCP client is published from CI with provenance
- The npm-distributed integrations report their version like the WordPress plugins do
- Funnels stopped at the first delay or condition wait, and a condition wait failed on MySQL
- Automation and funnel emails reached bounced, unsubscribed and inactive subscribers
- Funnels never got past their start step
- A visual page builder for the public webinar funnel pages — blocks, columns, colours and a live preview
- Subscribers can finally be exported from the interface — and the file that comes out is the file the importer reads back
- The file importer was rewritten around the same format (SubscriberFileImportService)
- Campaign audiences can now be narrowed by subscriber custom fields — and so can the exclusions
- Full contact-list management over MCP — import, export, hygiene, membership and observability (33 new/extended tools, 73 total)
- Queue messages were never delivered when the mailbox's "allowed types" excluded autoresponder — while broadcasts kept working
- Editable webinar registration & thank-you pages + Calendly booking integration (extends the issue #25 funnel copy)
- Cleaner AI model names + single source of truth (follow-up to #28)
- MCP create_subscriber now actually reaches the API
- Double opt-in confirmation and resubscribe links always failed with an SQL error (#29)
- Autoresponder sequences ("kolejka") did not start for existing subscribers on most signup paths
- Re-signup could dump the entire sequence at once ("burst")


