Current release and channel
| Installed version | 1.0.0-rc.1 |
|---|---|
| Channel | Preview |
| Classification | Unsigned public pre-release for evaluation and community testing |
| Signed stable release | Not yet available |
| Update behavior | Manual release check only; no automatic check, download, execution, or installation |
Windows service and paths
Use the product UI and supported bootstrapper rather than hand-editing installed state, SQLite, spool payloads, tooling, or registry values.
| Item | Verified location | Notes |
|---|---|---|
| Windows service | RelayBridge | Automatic per-machine LocalSystem service |
| Installation root | C:\Program Files\RelayBridge | Protected per-machine installation |
| Host | C:\Program Files\RelayBridge\Host | Windows service payload |
| Production override | C:\Program Files\RelayBridge\Host\appsettings.Production.json | Fixed printer Apply target; use Settings rather than hand-editing |
| Setup helpers | C:\Program Files\RelayBridge\Setup | Native launcher, managed worker, printer configurator, and management opener |
| Private tooling | C:\Program Files\RelayBridge\Tooling | Pinned PowerShell, Exchange, Graph, and Entra setup closure |
| Installed documentation | C:\Program Files\RelayBridge\Docs | Getting Started, MPL license, and third-party notices |
| Durable state root | C:\ProgramData\RelayBridge | Preserved by uninstall |
| Database | C:\ProgramData\RelayBridge\Data\relaybridge.db | SQLite metadata; do not edit live |
| Spool root | C:\ProgramData\RelayBridge\Data\spool | Protected queued MIME data |
| Incoming spool | C:\ProgramData\RelayBridge\Data\spool\incoming | Temporary intake stage |
| Pending spool | C:\ProgramData\RelayBridge\Data\spool\pending | Durable queued .eml payloads |
| Public certificate exports | C:\ProgramData\RelayBridge\Data\exports | Public .cer files only; no private-key export |
| Provisioning scratch | C:\ProgramData\RelayBridge\SetupScratch | Protected short-lived Microsoft setup sessions |
| Installer staging | C:\ProgramData\RelayBridge\InstallerStaging | Installer-owned external package state |
| Installer state | C:\ProgramData\RelayBridge\InstallerState | Installer-owned provisioning state |
| Certificate store | LocalMachine\My | Local Computer → Personal; non-exportable application private key |
| Management endpoint state | HKLM\SOFTWARE\RelayBridge\ManagementEndpoint | Protected loopback URL used by the desktop opener |
| Operational events | Windows Application event log | RelayBridge source; runtime events are not included in support bundles |
Network and protocol reference
| Purpose | Endpoint or port | Direction | Boundary |
|---|---|---|---|
| Local management | http://localhost:5080/ | Local browser only | Loopback; no remote management |
| Health | /health | Local browser or tool | Queue and storage health endpoint |
| Printer SMTP | Selected private address, normally port 2525 | Device → RelayBridge | No inbound STARTTLS |
| Exchange SMTP | smtp.office365.com:587 | RelayBridge → Microsoft | Mandatory STARTTLS and XOAUTH2 |
| Release awareness | GitHub Releases API for getrelaybridge/relaybridge | RelayBridge → GitHub | Manual metadata check only; no download or installation |
RC1 pinned components
| Component | Version or model |
|---|---|
| RelayBridge | 1.0.0-rc.1 |
| WiX Toolset | 6.0.2 |
| .NET Runtime | 10.0.11, embedded prerequisite installer |
| ASP.NET Core Runtime | 10.0.11, embedded prerequisite installer |
| PowerShell | 7.6.4, packaged private tooling |
| ExchangeOnlineManagement | 3.9.2, packaged private module |
| Microsoft.Graph.Authentication | 2.25.0, exact installer-time Gallery acquisition |
| Microsoft.Graph.Applications | 2.25.0, exact installer-time Gallery acquisition |
| Microsoft.Entra.Authentication | 1.3.0, exact installer-time Gallery acquisition |
| Microsoft.Entra.Applications | 1.3.0, exact installer-time Gallery acquisition |
Release, source, and licenses
- RelayBridge v1.0.0-rc.1 GitHub Release
- Exact v1.0.0-rc.1 tagged source
- RelayBridge application repository
- RelayBridge website repository
RelayBridge-owned application source is MPL-2.0. The separate website repository is MIT-licensed. Microsoft, WiX, .NET, PowerShell, ExchangeOnlineManagement, Graph, Entra, and other third-party components retain their respective licenses.
Installed reference documents are available under C:\Program Files\RelayBridge\Docs as GETTING-STARTED.md, LICENSE, and THIRD-PARTY-NOTICES.md.
Support, security, and contributions
Use GitHub Issues for reproducible non-security bugs and feature discussions. Report suspected vulnerabilities privately as directed by SECURITY.md.
Do not publish tenant identifiers, mailbox or message data, credentials, tokens, certificates, private keys, raw configuration, databases, spool files, or unreviewed support bundles.
Public application contributions use a focused branch, tests, a DCO Signed-off-by trailer, CI, and a pull request. RelayBridge uses DCO 1.1 and does not require a CLA.