BillionMail

What is BillionMail?

Email campaigns, webmail and a send API on your own Linux server, with no monthly fee.

Who is BillionMail best for?

BillionMail is best for small businesses and server admins who want to send email campaigns from their own mail server.

• Cutting email tool bills

  It charges nothing per contact or per send, so a large list costs only the server and any relay you add.

• Admins tired of a hand-built mail stack

  One install script sets up Postfix, Dovecot and Roundcube webmail, then walks you through SPF, DKIM and DMARC records.

• Apps that send their own email

  A send API with an IP allowlist per key sends template emails with your own variables and tracks opens, clicks and bounces.

How much does BillionMail cost?

BillionMail is free to self-host under AGPL-3.0 with no sending limit, and its maker aaPanel sells an optional deployment service at $98.9 per instance with 7 days of support.

There is no hosted cloud: BillionMail runs only on your own server, and it can also be installed in one click from the aaPanel server panel's Docker apps. aaPanel sells an optional Deployment Package at $98.9 per instance: its engineers set the server up, give 7 days of support and refund the fee if the deployment fails. Full pricing on billionmail.com. We checked these prices on 8 Nov 2026.

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Is BillionMail open source?

Yes. BillionMail's code is public under the AGPL 3.0 licence, so you can run it on your own server.

What are the best BillionMail alternatives?

BillionMail is an open source alternative to GetResponse. Hyvor Post, Keila, listmonk and 2 more do the same job and are open source too.

GetResponseFree

Email, automation and SMS marketing with AI.

Hyvor PostOpen Source

Newsletter service with signup forms, an archive site and no open or click tracking, made in France.

KeilaOpen Source

Write and send campaigns with block, Markdown or MJML editors, sign-up forms and segments.

listmonkOpen Source

Mailing list manager in one binary that sends campaigns to millions of subscribers through your SMTP.

MauticOpen Source

Marketing automation suite with campaign journeys, email, landing pages, forms and lead scoring.

SendPortalOpen Source

Laravel app for newsletters and email campaigns sent through your own SES, Postmark or Mailgun.

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