#12 in Email & Lifecycle MarketingUpdated 2026-08

BillionMail

by Billion Mail · Self-hosted open-source mail server with newsletter and campaign tools

13.3 — BenchRank score out of 100

Homepage

Visit website See full Email & Lifecycle Marketing ranking

Overview

BillionMail is an open-source, self-hosted mail server with newsletter and email marketing tools, published by aaPanel under AGPLv3. You install it on your own server with a shell script or one-click via aaPanel, add a sending domain and verify DNS records, then build campaigns and track sent volume, deliverability, open rate and click-through rate on a dashboard.

Best for: Teams that want to run their own SMTP and email marketing stack instead of paying a SaaS platform
Pricing: No prices are shown; the software is open source under AGPLv3 and described as self-hosted and free of monthly fees.
Runs on: Self-hosted

Strengths and trade-offs

Strengths

Self-hosted and open source under AGPLv3, no monthly fees
Guided SPF, DKIM and DMARC setup with deliverability analytics
Dashboard shows sent volume, deliverability, opens and CTR
No built-in sending speed limit for cold outreach

Trade-offs

You provision, run and maintain the mail server and its IP reputation
AGPLv3 copyleft may not suit embedding in closed products
AI email builder is a hosted step needing Google or email sign-in
Captured page shows no support, SLA or paid tier detail

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
Documentation: 0 out of 100
Agent friendliness: 24 out of 100
Changelog: 55 out of 100
Marketing site structure: 15 out of 100
Operational trust: 0 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 40 out of 100
Maintenance: 90 out of 100

This doesn’t look right — report a problem with BillionMail’s score

Alternatives in Email & Lifecycle Marketing

Ranked 1
78.7 — BenchRank score out of 100
Bird
Bird · Volume-priced email API with other channels not yet shipped
Best for: Developer teams sending transactional email at volume who want one API and contract per channel.
Ranked 2
73.6 — BenchRank score out of 100
Mailchimp
Mailchimp · Email and SMS marketing with automation and reporting
Best for: Small businesses running email and SMS marketing with automation, templates and reporting
Ranked 3
68.5 — BenchRank score out of 100
Wraps
Wraps · Open-source email infrastructure deployed into your own AWS account
Best for: Engineering teams on AWS who want email templates and automations kept in their own repo.