# microsoft/CSS-Exchange

Exchange Server support tools and scripts

Repository: https://github.com/microsoft/CSS-Exchange
Canonical: https://ross.abutalabs.com/products/css-exchange
Language: PowerShell
License: MIT
License Family: permissive
Last push: 2026-08-24T14:53:03+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 2218, "days_push": 9, "days_rel": 14, "gap_med": 5, "n_releases_24m": 102}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1284, forks 392 (observed 2026-08-28T04:04:14.492144+00:00)

## What it is
A collection of PowerShell scripts from Microsoft Customer Service and Support for diagnosing and fixing issues in Microsoft Exchange Server and Exchange Online. It covers on-premises, hybrid, and migration scenarios with tools for health checks, configuration analysis, and remediation.

## Use cases
- diagnose Exchange Server health issues
- troubleshoot Exchange hybrid migration problems
- run Exchange Online support diagnostics
- fix mail flow issues in on-prem Exchange
- analyze Exchange server configuration for common problems
- collect diagnostic data for Microsoft support cases

## When to choose
- you administer Exchange Server on-premises or in hybrid deployments
- you need Microsoft-authored diagnostic and remediation scripts for Exchange
- you're preparing data for a Microsoft support case

## When to avoid
- you use a non-Microsoft mail platform like Postfix or Gmail
- you need a GUI-based Exchange management tool
- you're looking for general PowerShell scripting frameworks

## Facets
- artifact type: cli-tool
- maturity: active
- function: developer-tools, security, monitoring, configuration-management
- domain: email, self-hosted, developer-tools
- platform: windows, cli
- tags: exchange-server, exchange-online, powershell-scripts, microsoft, support-tools, troubleshooting, hybrid-deployments, automation

## Member repositories
- microsoft/CSS-Exchange (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:14.492144+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:56:45.738307+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/CSS-Exchange (fetched 2026-08-28T04:04:14.492144+00:00, sha 614826080355)
- Data as of 2026-08-30T08:39:29.467469+00:00.