OPEN-SOURCE MIGRATION BENCHMARK License: MIT ★ 2.9k GitHub Stars

Replace SendGrid / Customer.io with Self-Hosted Dittofeed / Postal

Open-source omnichannel customer engagement (Customer.io alternative) + self-hosted mail delivery server Stop paying Pro ($90–$150/mo transactional & drip journeys) ($90/mo for a 10-person team) and run Dittofeed / Postal on a $4.50/mo Linux VPS with full data sovereignty.

10-Seat Annual Savings

+$1,026 / yr

vs SendGrid / Customer.io standard plan

Container RAM & vCPU

512 MB RAM

1.0 vCPU • Migration: Easy

Recommended Cloud Box

$4.50/mo VPS

Hetzner CX22 (4GB RAM / 2 vCPU)

1-to-100 Seat Total Cost of Ownership (TCO) Table

Comparing SendGrid / Customer.io (Pro ($90–$150/mo transactional & drip journeys)) vs Dittofeed / Postal on Hetzner CX22 (4GB RAM / 2 vCPU).

Team Size	SendGrid / Customer.io Cost	Dittofeed / Postal VPS	Net Annual Savings
1 Seat (Solo)	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year
5 Seats	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year
10 Seats	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year
25 Seats	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year
50 Seats	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year
100 Seats	$90.00/mo ($1,080/yr)	$4.50/mo (CX22)	+$1,026 / year

Production Docker Compose + Caddy Auto-SSL

Copy and run docker compose up -d on any Ubuntu 24.04 server.

Open in Multi-Tool Builder →

# Production Docker Compose: Dittofeed / Postal (Replaces SendGrid / Customer.io)
services:
  caddy:
    image: caddy:2-alpine
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile:ro
      - caddy_data:/data
    networks:
      - stack_net

  dittofeed-postal:
    image: dittofeed/dittofeed-lite:latest
    container_name: stack-dittofeed-postal
    restart: unless-stopped
    environment:
      - "DATABASE_URL=postgresql://postgres:${POSTGRES_PASSWORD:-strongpassword}@postgres:5432/dittofeed"
    volumes:
      - dittofeed_postal_data:/data
    networks:
      - stack_net

  postgres:
    image: pgvector/pgvector:pg16
    container_name: stack-postgres
    restart: unless-stopped
    environment:
      - "POSTGRES_USER=postgres"
      - "POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-strongpassword}"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - stack_net

networks:
  stack_net:
    driver: bridge

volumes:
  caddy_data:
  dittofeed_postal_data:
  postgres_data:

Caddyfile (Automatic HTTPS Reverse Proxy):

# Automatic Let's Encrypt HTTPS for Dittofeed / Postal
dittofeed-postal.{$DOMAIN:yourdomain.com} {
  encode zstd gzip
  reverse_proxy dittofeed-postal:3000
}

Why Teams Switch to Dittofeed / Postal

✓Visual event-triggered user journeys
✓Connects to Amazon SES ($0.10 per 1,000 emails)
✓100% MIT licensed

GitHub Repository dittofeed/dittofeed

Official Website www.dittofeed.com

Docker Image dittofeed/dittofeed-lite:latest

Database Needed PostgreSQL 16

1-Click Cloud VPS Hosting

Deploy Dittofeed / Postal in 60 Seconds

Sized automatically for Dittofeed / Postal (512MB container RAM + OS overhead).

Hetzner Cloud (CX22)

Includes €20 Free Cloud Credit

$4.50/mo →

DigitalOcean Droplet

Includes $200 60-Day Free Credit

$24.00/mo →

Railway.app Managed Container

Zero server maintenance

$5.00/mo →

PRODUCTION BOILERPLATE ZIP

Get All 16 Pre-Built Production Stacks + Encrypted S3 Backups