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mesh-catalog/modules/mailu/module.json
T
jschoubben 4489e56935 mailu: one WEBMAIL_ADDRESS, the mesh's container name 
The env block carried the key twice — mailu-webmail from #79's address
sweep, and a stray =webmail further down that survived it. Last write
wins in an env file, so the front resolved a name that answers nowhere
on the mesh's network and 502'd every logged-in webmail request. Latent
since the cutover: the SSO redirect the checks watched never touches
the upstream; the operator's first real login did.
2026-09-26 15:04:32 +02:00

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{
"module": "mailu",
"version": "1",
"capabilities": [
"container-runtime"
],
"requires": [
"postgres-database",
"route",
"secret"
],
"contributes": {
"postgres-database": {
"name": "mailu"
},
"route": {
"web": {
"label": "mail",
"port": 7443,
"scheme": "https",
"insecure": true
},
"acme": {
"label": "mail",
"path": "/.well-known/acme-challenge",
"port": 7080,
"priority": 100
},
"autoconfig": {
"label": "autoconfig",
"port": 4243
},
"autodiscover": {
"label": "autodiscover",
"port": 4243
},
"automx": {
"label": "automx",
"port": 4243
}
}
},
"binds": {
"postgres-database": "/var/lib/mailu/database.json",
"route": "/var/lib/mailu/route.json"
},
"secrets": {
"postgres-database": "/var/lib/mailu/database.secret",
"secret": {
"secret-key": "/var/lib/mailu/secret-key.secret",
"admin": "/var/lib/mailu/admin.secret",
"api-token": "/var/lib/mailu/api-token.secret"
}
},
"emits": [
"module.mailu.user.created",
"module.mailu.user.deleted",
"module.mailu.alias.created",
"module.mailu.alias.deleted"
],
"listens": [
{
"port": 25,
"protocol": "tcp",
"from": "anywhere",
"why": "mail from other mail servers",
"fixed": true
},
{
"port": 110,
"protocol": "tcp",
"from": "anywhere",
"why": "POP3, kept at parity with the predecessor; pruning legacy protocols is its own deliberate change",
"fixed": true
},
{
"port": 143,
"protocol": "tcp",
"from": "anywhere",
"why": "IMAP with STARTTLS, kept at parity",
"fixed": true
},
{
"port": 465,
"protocol": "tcp",
"from": "anywhere",
"why": "submission over TLS",
"fixed": true
},
{
"port": 587,
"protocol": "tcp",
"from": "anywhere",
"why": "submission; also what the smtp provision serves consumers",
"fixed": true
},
{
"port": 993,
"protocol": "tcp",
"from": "anywhere",
"why": "IMAP over TLS",
"fixed": true
},
{
"port": 995,
"protocol": "tcp",
"from": "anywhere",
"why": "POP3 over TLS, kept at parity",
"fixed": true
},
{
"port": 7080,
"protocol": "tcp",
"from": "mesh",
"why": "the web front over http; only the ACME HTTP-01 passthrough is routed here \u2014 everything else 301s to https and would loop a proxy"
},
{
"port": 7443,
"protocol": "tcp",
"from": "mesh",
"why": "the web front over its own TLS (admin, webmail, API); the public name mail.novox.be is a route grant reaching it here"
},
{
"port": 4243,
"protocol": "tcp",
"from": "mesh",
"why": "automx: mail client autoconfiguration; autoconfig/autodiscover/automx.novox.be are route grants reaching it here"
}
],
"own-secrets": {
"broker": "/var/lib/mesh/mailu/broker"
},
"resources": [
{
"id": "mesh-state",
"type": "directory",
"path": "/var/lib/mesh/mailu",
"mode": "0700"
},
{
"id": "state",
"type": "directory",
"path": "/var/lib/mailu",
"mode": "0700"
},
{
"id": "grants",
"type": "directory",
"path": "/var/lib/mailu/grants",
"mode": "0700"
},
{
"id": "data-automx",
"type": "directory",
"path": "/services/mailu/data/automx",
"mode": "0700"
},
{
"id": "config-env",
"type": "file",
"path": "/var/lib/mailu/mailu.env",
"mode": "0644",
"content": "ADMIN_ADDRESS=mailu-admin\nANTISPAM_ADDRESS=mailu-antispam\nANTIVIRUS_ADDRESS=mailu-antivirus\nIMAP_ADDRESS=mailu-imap\nSMTP_ADDRESS=mailu-smtp\nFRONT_ADDRESS=mailu-front\nWEBMAIL_ADDRESS=mailu-webmail\nWEBDAV_ADDRESS=mailu-webdav\nREDIS_ADDRESS=mailu-redis\nPORTS=25,80,443,465,993,995,4190,110,143,587\nDOMAIN=novox.be\nHOSTNAMES=mail.novox.be\nPOSTMASTER=admin\nSITENAME=Novox\nWEBSITE=https://novox.be\nTLS_FLAVOR=letsencrypt\nSUBNET=192.168.203.0/24\nCOMPOSE_PROJECT_NAME=mailu\nANTIVIRUS=clamav\nWEBMAIL=roundcube\nWEBDAV=radicale\nFETCHMAIL_ENABLED=True\nFETCHMAIL_DELAY=600\nADMIN=true\nWEB_ADMIN=/admin\nWEB_WEBMAIL=/webmail\nWEBROOT_REDIRECT=/webmail\nAPI=true\nWEB_API=/api\nAUTH_RATELIMIT_IP=6000/hour\nAUTH_RATELIMIT_USER=1000/day\nCREDENTIAL_ROUNDS=12\nPASSWORD_SCHEME=PBKDF2\nDISABLE_STATISTICS=True\nMESSAGE_SIZE_LIMIT=50000000\nMESSAGE_RATELIMIT=200/day\nRECIPIENT_DELIMITER=+\nPOSTFIX_MYNETWORKS=127.0.0.0/8 [::1]/128\nRELAYNETS=\nRELAYHOST=\nREJECT_UNLISTED_RECIPIENT=\nDB_FLAVOR=postgresql\nINITIAL_ADMIN_ACCOUNT=admin\nINITIAL_ADMIN_DOMAIN=novox.be\nINITIAL_ADMIN_MODE=ifmissing\nSMTP_PORT=25\nSMTPS_PORT=465\nSUBMISSION_PORT=587\nPOP3_PORT=110\nPOP3S_PORT=995\nIMAP_PORT=143\nIMAPS_PORT=993\nHTTP_PORT=7080\nHTTPS_PORT=7443\nAUTOMX_PORT=4243\nAMX_SMTP_ADDRESS=mail.novox.be\nAMX_SMTP_PORT=587\nAMX_IMAP_ADDRESS=mail.novox.be\nAMX_IMAP_PORT=143\nAMX_MAIL_DOMAINS=novox.be\nDMARC_RUA=admin\nDMARC_RUF=admin\nLETSENCRYPT_SHORTCHAIN=True\nTZ=Etc/UTC\nLOG_LEVEL=INFO\nWELCOME=false\nREAL_IP_HEADER=X-Real-IP\nREAL_IP_FROM=142.132.152.141\nCOMPRESSION=\nCOMPRESS_LEVEL=\nCOMPRESSION_LEVEL=\nBIND_ADDRESS4=127.0.0.1\nBIND_ADDRESS6=::1\nMAILU_VERSION=1.9\nDOCKER_ORG=mailu\nDOCKER_PREFIX=\nWELCOME_SUBJECT=Welcome to your new email account\nWELCOME_BODY=Welcome to your new email account, if you can read this, then it is configured properly!\n"
},
{
"id": "secret-env",
"type": "file",
"path": "/var/lib/mailu/secret.env",
"mode": "0600",
"content": "SECRET_KEY=${secret:secret-key}\n"
},
{
"id": "database-env",
"type": "file",
"path": "/var/lib/mailu/database.env",
"mode": "0600",
"content": "DB_FLAVOR=postgresql\nDB_HOST=${bound:postgres-database:at}:${bound:postgres-database:port}\nDB_USER=${bound:postgres-database:as}\nDB_NAME=${bound:postgres-database:as}\nDB_PW=${secret:postgres-database}\n"
},
{
"id": "admin-env",
"type": "file",
"path": "/var/lib/mailu/admin.env",
"mode": "0600",
"content": "INITIAL_ADMIN_PW=${secret:admin}\nAPI_TOKEN=${secret:api-token}\n"
},
{
"id": "data-certs",
"type": "directory",
"path": "/services/mailu/data/certs",
"mode": "0700"
},
{
"id": "data-data",
"type": "directory",
"path": "/services/mailu/data/data",
"mode": "0700"
},
{
"id": "data-dkim",
"type": "directory",
"path": "/services/mailu/data/dkim",
"mode": "0700"
},
{
"id": "data-mail",
"type": "directory",
"path": "/services/mailu/data/mail",
"mode": "0700"
},
{
"id": "data-mailqueue",
"type": "directory",
"path": "/services/mailu/data/mailqueue",
"mode": "0755"
},
{
"id": "data-filter",
"type": "directory",
"path": "/services/mailu/data/filter",
"mode": "0700"
},
{
"id": "data-clamav",
"type": "directory",
"path": "/services/mailu/data/clamav",
"mode": "0700"
},
{
"id": "data-redis",
"type": "directory",
"path": "/services/mailu/data/redis",
"mode": "0700"
},
{
"id": "data-webmail",
"type": "directory",
"path": "/services/mailu/data/webmail",
"mode": "0700"
},
{
"id": "data-dav",
"type": "directory",
"path": "/services/mailu/data/dav",
"mode": "0700"
},
{
"id": "data-fetchmail",
"type": "directory",
"path": "/services/mailu/data/data/fetchmail",
"mode": "0700"
},
{
"id": "data-overrides-nginx",
"type": "directory",
"path": "/services/mailu/data/overrides/nginx",
"mode": "0700"
},
{
"id": "data-overrides-dovecot",
"type": "directory",
"path": "/services/mailu/data/overrides/dovecot",
"mode": "0700"
},
{
"id": "data-overrides-postfix",
"type": "directory",
"path": "/services/mailu/data/overrides/postfix",
"mode": "0700"
},
{
"id": "data-overrides-rspamd",
"type": "directory",
"path": "/services/mailu/data/overrides/rspamd",
"mode": "0700"
},
{
"id": "data-overrides-roundcube",
"type": "directory",
"path": "/services/mailu/data/overrides/roundcube",
"mode": "0700"
},
{
"id": "net",
"type": "network",
"name": "mailu"
},
{
"id": "resolver",
"type": "container",
"name": "mailu-resolver",
"image": "ghcr.io/mailu/unbound@sha256:3a0fdfb364a63f4f9259526e013c1ef40f5f14de3621ce1560804b3a5909584a",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env",
"/var/lib/mailu/secret.env"
],
"secrets-in-environment": "mailu-admin honours SECRET_KEY_FILE, DB_PW_FILE and API_TOKEN_FILE (configuration.py) but INITIAL_ADMIN_PW is env-only (start.py); the remaining containers' need for SECRET_KEY is unverified",
"ip": "192.168.203.254"
},
{
"id": "redis",
"type": "container",
"name": "mailu-redis",
"image": "redis@sha256:4bed291aa5efb9f0d77b76ff7d4ab71eee410962965d052552db1fb80576431d",
"network": "mailu",
"volumes": [
"/services/mailu/data/redis:/data"
]
},
{
"id": "admin",
"type": "container",
"name": "mailu-admin",
"image": "ghcr.io/mailu/admin@sha256:6dbfdadc4a9590dcb7652357b505200115b689b74008653bbf369e4599a3be5a",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env",
"/var/lib/mailu/secret.env",
"/var/lib/mailu/database.env",
"/var/lib/mailu/admin.env"
],
"volumes": [
"/services/mailu/data/data:/data",
"/services/mailu/data/dkim:/dkim"
],
"secrets-in-environment": "mailu-admin honours SECRET_KEY_FILE, DB_PW_FILE and API_TOKEN_FILE (configuration.py) but INITIAL_ADMIN_PW is env-only (start.py); the remaining containers' need for SECRET_KEY is unverified",
"dns": [
"192.168.203.254"
]
},
{
"id": "imap",
"type": "container",
"name": "mailu-imap",
"image": "ghcr.io/mailu/dovecot@sha256:7f0ed5db996fbdc00adc5c5e38a08492e04f7eb4a9fbd66a03aa9a28ddf23993",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env"
],
"volumes": [
"/services/mailu/data/mail:/mail",
"/services/mailu/data/overrides/dovecot:/overrides:ro"
],
"dns": [
"192.168.203.254"
]
},
{
"id": "smtp",
"type": "container",
"name": "mailu-smtp",
"image": "ghcr.io/mailu/postfix@sha256:e2e49f39e53b80eac9e7a2f18d9df11edeb4914fd62dbba89b3155e8e034f62e",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env"
],
"volumes": [
"/services/mailu/data/mailqueue:/queue",
"/services/mailu/data/overrides/postfix:/overrides:ro"
],
"dns": [
"192.168.203.254"
]
},
{
"id": "antispam",
"type": "container",
"name": "mailu-antispam",
"image": "ghcr.io/mailu/rspamd@sha256:ff3666d8a61f17d309c5c6f6bcf4d40470b82299ca706ac650301175bb1a079d",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env"
],
"volumes": [
"/services/mailu/data/filter:/var/lib/rspamd",
"/services/mailu/data/overrides/rspamd:/etc/rspamd/override.d:ro"
],
"dns": [
"192.168.203.254"
]
},
{
"id": "antivirus",
"type": "container",
"name": "mailu-antivirus",
"image": "clamav/clamav-debian@sha256:b12ef8fefddbba7d88de59bea8a32622f365339154adf02d38fd089112e6745a",
"network": "mailu",
"volumes": [
"/services/mailu/data/clamav:/var/lib/clamav"
],
"dns": [
"192.168.203.254"
]
},
{
"id": "webmail",
"type": "container",
"name": "mailu-webmail",
"image": "ghcr.io/mailu/webmail@sha256:bdbee44cdb05a4658f0e3b62cc448de55ca8f8aea172279fda594826144c04f6",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env",
"/var/lib/mailu/secret.env"
],
"volumes": [
"/services/mailu/data/webmail:/data",
"/services/mailu/data/overrides/roundcube:/overrides:ro"
],
"secrets-in-environment": "mailu-admin honours SECRET_KEY_FILE, DB_PW_FILE and API_TOKEN_FILE (configuration.py) but INITIAL_ADMIN_PW is env-only (start.py); the remaining containers' need for SECRET_KEY is unverified",
"dns": [
"192.168.203.254"
]
},
{
"id": "webdav",
"type": "container",
"name": "mailu-webdav",
"image": "ghcr.io/mailu/radicale@sha256:690ed6edf189dfef100a5a8b37c195ebf5d9241ac5f23f2f44b8b7b75726e3de",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env",
"/var/lib/mailu/secret.env"
],
"volumes": [
"/services/mailu/data/dav:/data"
],
"secrets-in-environment": "mailu-admin honours SECRET_KEY_FILE, DB_PW_FILE and API_TOKEN_FILE (configuration.py) but INITIAL_ADMIN_PW is env-only (start.py); the remaining containers' need for SECRET_KEY is unverified",
"dns": [
"192.168.203.254"
]
},
{
"id": "fetchmail",
"type": "container",
"name": "mailu-fetchmail",
"image": "ghcr.io/mailu/fetchmail@sha256:f881c8412d3bbe73d638469b48321558d6403a9d45bfa043c1e52c752103d42d",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env",
"/var/lib/mailu/secret.env"
],
"volumes": [
"/services/mailu/data/data/fetchmail:/data"
],
"secrets-in-environment": "mailu-admin honours SECRET_KEY_FILE, DB_PW_FILE and API_TOKEN_FILE (configuration.py) but INITIAL_ADMIN_PW is env-only (start.py); the remaining containers' need for SECRET_KEY is unverified",
"dns": [
"192.168.203.254"
]
},
{
"id": "front",
"type": "container",
"name": "mailu-front",
"image": "ghcr.io/mailu/nginx@sha256:36f98897cd1bc9d27628bbb4e04bdf60147af2ec7507d6da77f002c4f256896d",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env"
],
"ports": [
"25",
"110",
"143",
"465",
"587",
"993",
"995",
"7080:80",
"7443:443"
],
"volumes": [
"/services/mailu/data/certs:/certs",
"/services/mailu/data/overrides/nginx:/overrides:ro"
],
"dns": [
"192.168.203.254"
]
},
{
"id": "runtime-config",
"type": "file",
"path": "/var/lib/mesh/mailu/config.json",
"mode": "0600",
"content": "{}\n",
"merge": "json"
},
{
"id": "runtime",
"type": "container",
"name": "mesh-mailu",
"network": "mailu",
"volumes": [
"/var/lib/mesh/mailu/broker:/run/secrets/broker:ro",
"/var/lib/mailu/api-token.secret:/run/secrets/api-token:ro",
"/var/lib/mailu/grants:/var/lib/mailu/grants:ro",
"/var/lib/mesh/mailu/config.json:/run/config/config.json:ro",
"/var/run/docker.sock:/var/run/docker.sock"
],
"env": {
"MESH_BROKER_FILE": "/run/secrets/broker",
"MESH_MAILU_URL": "http://mailu-admin:8080/api/v1",
"MESH_MAILU_API_KEY_FILE": "/run/secrets/api-token",
"MESH_MAILU_IMAP_CONTAINER": "mailu-imap",
"MESH_MAILU_CONFIG_FILE": "/run/config/config.json",
"MESH_MAILU_DOMAIN": "novox.be",
"MESH_RECEIVES": "/var/lib/mailu/grants/mesh.json"
},
"restart-on": [
"runtime-config"
],
"artifact": "runtime"
},
{
"id": "automx",
"type": "container",
"name": "mailu-automx",
"artifact": "automx",
"network": "mailu",
"env-file": [
"/var/lib/mailu/mailu.env"
],
"ports": [
"4243"
],
"volumes": [
"/services/mailu/data/automx:/data"
]
}
],
"build": {
"on": [
{
"arg": "BUILD_BASE",
"module": "mesh-tools",
"artifact": "build"
},
{
"arg": "RUNTIME_BASE",
"module": "mesh-tools",
"artifact": "runtime"
},
{
"arg": "PYTHON_BASE",
"image": "python@sha256:25f3cfeaceca14921366af4d1240b56457ef46273bdb508c7b0e8f469f6fd228"
}
],
"artifacts": [
{
"name": "runtime",
"kind": "image",
"from": "Dockerfile"
},
{
"name": "automx",
"kind": "image",
"from": "automx/Dockerfile"
}
]
},
"provides": [
{
"name": "smtp",
"scope": "mesh"
}
],
"serves": {
"smtp": {
"port": 587,
"domain": "novox.be"
}
},
"receives": {
"smtp": "/var/lib/mailu/grants/mesh.json"
},
"grants": {
"smtp": "/var/lib/mailu/grants"
}
}
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