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Comparison · Comms
Maddy vs Mailu
A side-by-side editorial comparison of Maddy and Mailu — release velocity, themes, recent moves, and the top alternatives to consider.
Maddy vs Mailu: at a glance
What is Maddy?
maddy's latest release is a security fix, five months after its last feature work.
maddy is an all-in-one Go mail server for SMTP and IMAP. Its most recent release, 0.9.6 in October, requires explicit trust for PROXY protocol headers and closes an auth misconfiguration that could skip password checks. Before that, the 0.9 line ran from March to May: no-downtime config reload in 0.9.0, an LDAP injection fix, and removal of long-deprecated commands.
What is Mailu?
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
Mailu's 2024.06 branch shipped six pinned releases in October, each tied to a single issue. Three dealt with the resolver: handling the DNSSEC KSK rollover, then making the healthcheck fail on SERVFAIL, re-shipped once. Three were webmail: Roundcube 1.6.20, mitigations for the PHP2Shell CVEs, and then the patched PHP runtime. Late September releases fixed boolean settings that could not be turned off and stale webmail sessions after switching accounts via SSO.
Maddy vs Mailu: editorial side-by-side
Maddy
0.0COMMS
maddy's latest release is a security fix, five months after its last feature work.
◆ Current state
maddy is an all-in-one Go mail server for SMTP and IMAP. Its most recent release, 0.9.6 in October, requires explicit trust for PROXY protocol headers and closes an auth misconfiguration that could skip password checks. Before that, the 0.9 line ran from March to May: no-downtime config reload in 0.9.0, an LDAP injection fix, and removal of long-deprecated commands.
◆ Where it's heading
The project is moving from convenient defaults to safer ones, accepting breaking changes on the way. Older conveniences such as SASL LOGIN, STARTTLS plaintext fallback and the maddyctl symlink have been removed, and 0.9.1 flagged several DNS providers for removal in 0.10.0. Two of the last four releases were security fixes.
◆ Prediction
0.10.0 is scoped by the deprecations announced in 0.9.1: expect the flagged DNS providers to go and gandi to require Bearer tokens. The five-month gap gives no date for it.
Mailu
5.0COMMS
Mailu's October: patched PHP for webmail, and a resolver that reports DNS failures
◆ Current state
Mailu's 2024.06 branch shipped six pinned releases in October, each tied to a single issue. Three dealt with the resolver: handling the DNSSEC KSK rollover, then making the healthcheck fail on SERVFAIL, re-shipped once. Three were webmail: Roundcube 1.6.20, mitigations for the PHP2Shell CVEs, and then the patched PHP runtime. Late September releases fixed boolean settings that could not be turned off and stale webmail sessions after switching accounts via SSO.
◆ Where it's heading
The project remains in one-fix-per-release maintenance on the 2024.06 line, with upstream webmail and PHP security driving much of the cadence. Nothing in the entries points to a new main release.
◆ Prediction
The next releases will most likely follow upstream Roundcube or PHP security fixes, as three of the last six did.
Alternatives to Maddy and Mailu
Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Maddy or Mailu.
Synapse
Synapse 1.164 advertises Matrix v1.16 and v1.17 amid a run of dependency security patches
Subsplash
Subsplash gives church staff notes on every person and every Workflow card.
Grain
Grain adds consent controls and rule-based privacy as its meeting data reaches more AI tools.
Converse.js
Converse.js 14.0.1 fixes OMEMO:2 group decryption broken by Chromium 153.
Element iOS
Element Classic now asks its own users to move to Element X, if their server opts in.
Recent activity from Maddy and Mailu
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 11d agoMailuMailu ships patched PHP for PHP2Shell CVEs
- 12d agoMailuMailu mitigates PHP2Shell webmail CVEs
- 14d agoMailuMailu 2024.06.65: Roundcube 1.6.20 update
- 19d agoMailu2024.06.64 re-ships the resolver healthcheck fix
- 21d agoMailu2024.06.63 makes the resolver healthcheck catch SERVFAIL
- 22d agoMailu2024.06.62 handles the DNSSEC KSK rollover
- 1mo agoMaddymaddy 0.9.6 fixes PROXY trust and auth bypass misconfig
- 5mo agoMaddymaddy 0.9.5 fixes nested pipeline logging and systemd reload reporting
- 6mo agoMaddymaddy 0.9.4 removes the maddyctl symlink and implicit run command
- 6mo agoMaddymaddy 0.9.3 patches an LDAP injection flaw in auth.ldap
- 7mo agoMaddymaddy 0.9.2 fixes an rspamd panic on unspecified tls_client
- 7mo agoMaddymaddy 0.9.1 flags libdns providers for removal in 0.10.0
Frequently asked questions
What is the difference between Maddy and Mailu?
They serve adjacent needs but don't currently overlap on shipped themes. Mailu is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Maddy better than Mailu?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Mailu is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
What are the best alternatives to Maddy?
Top Maddy alternatives in Comms are ranked by recent ship velocity. Browse the "Maddy alternatives" section above for the current picks, or visit /alternatives/maddy for the full list with editorial commentary on each.
What are the best alternatives to Mailu?
Top Mailu alternatives in Comms are ranked by recent ship velocity. Browse the "Mailu alternatives" section above for the current picks, or visit /alternatives/mailu for the full list with editorial commentary on each.