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Stalw vs GitHub

Stalw lands on Depends, and GitHub lands on Worth it.

Stalw

stalw.art

Depends
Confidence: Medium

Strong fit if you have ops skills and want a free, all-in-one self-hosted mail stack.

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GitHub

postalserver.io

Worth it
Confidence: Medium

Buy it if you write code: GitHub is the default home for repos, pull-request review, and CI, with a real free tier.

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Stalw versus GitHub
CompareStalwGitHub
VerdictDependsWorth it
Best forSelf-hostersDev teams needing code review and CI
Who it's not forNon-technical teams without a sysadminNon-developers . this is code tooling, not business software
PrivacyKnown 2026 denial-of-service vulnerabilities; advisories disclosed openly and a public security page exists.⁷Two live issues in 2026: an RCE vulnerability (CVE-2026-3854) and a confirmed breach of ~3,800 repos via a malicious VS Code extension.
Support qualityNo evidence reviewedNo evidence in sources reviewed
Public sentimentSelf-hosting communities praise it warmly, but large-scale review data is essentially absent.10Users value the review and Actions ecosystem but increasingly complain about overcomplicated UX and Copilot usage pricing.
Biggest gotchaGuess: email migration and IP reputation take weeks; plan deliverability warm-up.12Copilot moved to usage/token billing; costs unpredictable . formal complaints and press backlash

Pick Stalw when

  • Self-hosters
  • Privacy-focused small orgs
  • Teams replacing hosted Gmail with owned infra
  • Open-source-first shops

When Stalw is not a fit

  • Non-technical teams without a sysadmin
  • Anyone wanting hosted Gmail simplicity
  • Businesses that can't manage IP reputation and deliverability
  • One-person shops that just need working email

Pick GitHub when

  • Dev teams needing code review and CI
  • Open-source projects
  • Enterprises standardizing on Copilot AI
  • Solo developers and learners

When GitHub is not a fit

  • Non-developers . this is code tooling, not business software
  • Anyone wanting dead-simple versioning; beginners report it's overcomplicated
  • Teams balking at unpredictable usage-based Copilot billing
  • Orgs that need self-hosted or non-GitHub-hosted code by default

Sources

  1. Stalwart Mail & Collaboration Serverstalw.art
    official
  2. Pricing | Stalwart Labsstalw.art
    official
  3. Compare editions | Stalwart Labsstalw.art
    official
  4. Product security pagestalw.art
    official
  5. stalwartlabs/stalwart on GitHubgithub.com
    official
  6. Deploy & Host Stalwart Mail Server . Railwayrailway.com
    official
  7. Out-of-Memory Denial of Service advisory (GHSA-jm95-876q-c9gw)github.com
    security
  8. CVE-2026-26312 . stalw / stalwartopencve.alliance.unm.edu
    security
  9. Vulnerability report for Stalwart Binarysupport.stalw.art
    security
  10. Just a shout-out to self-hosting email server StalWartreddit.com
    review
  11. Calendars, Contacts and Files in Stalwartnews.ycombinator.com
    review
  12. Mailcow vs Postal vs Stalwart: Which Self-Hosted Emailmailflowauthority.com
    review
  13. r/stalwartlabsreddit.com
    review
  14. Code review and pull requestsgithub.com
    official
  15. GitHub Pricinggithub.com
    official
  16. GitHub's plans (docs)docs.github.com
    official