Can I open-source Newton Mail?
KINDA · partial or early alternativesKinda. Stalwart and Listmonk cover the core of Newton Mail, but they're early or partial — expect gaps like push infrastructure, provider compatibility, mobile apps, sync, and support and mail hosting and deliverability.
People still pay for Newton Mail because an email client can be rebuilt; operating a trusted mail service with excellent deliverability cannot. The recurring cost buys IMAP quirks, OAuth, MIME, threading, search, attachments, offline sync, notifications, secure storage, and provider changes, not just the visible interface.
xpush infrastructure, provider compatibility, mobile apps, sync, and support
xmail hosting and deliverability
xpush on every platform
xadvanced team collaboration
xprovider-specific AI and search
These projects already replace it, free.
LListmonkHigh-performance single-binary newsletter and mailing list manager with campaigns, templates, and Postgres backendopen source↗SStalwartModern all-in-one mail server in Rust with JMAP, IMAP, and SMTP plus built-in spam filtering.open source↗What each one is, in full: Listmonk · Stalwart
no votes, no pay-to-list · just what's real
Newton Mail pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| newton | — | $4.17/user | 1 annual subscription; no numeric mailbox or device cap published; the 2026 relaunch initially supports Gmail and Outlook on macOS and Windows. |
free tierno free tier; 14-day free trial, no credit card
billingannual only ($49.99/year); no monthly plan
verified 2026-08-12 · source ↗
Can I open-source Newton Mail?
Kinda. Listmonk covers the core of Newton Mail, but there are real gaps: push infrastructure, provider compatibility, mobile apps, sync, and support, mail hosting and deliverability. Read the honest list above before committing.
How much does Newton Mail cost?
Newton Mail costs about $4.17/month (Newton, checked 2026-08-12), which is $50.04 per year.
What do I lose by replacing Newton Mail?
Honestly: push infrastructure, provider compatibility, mobile apps, sync, and support; mail hosting and deliverability; push on every platform; advanced team collaboration; provider-specific AI and search. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Newton Mail?
Yes: Listmonk (High-performance single-binary newsletter and mailing list manager with campaigns, templates, and Postgres backend) Stalwart (Modern all-in-one mail server in Rust with JMAP, IMAP, and SMTP plus built-in spam filtering.)