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MCP server for on-prem Microsoft Exchange via EWS with email, calendar, contacts, and availability tools
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- outlook-ews-mcp
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
6 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v2.0.11
8 findings · 6.9s
v0.3.74
5 findings · 5.8s
v0.2.0
0 findings · 3.8s
v0.2.0
0 findings · 3.8s
v0.71.0
0 findings · 0.3s
v2.3.8
0 findings · 1.3s
v1.4.0
None of the entry points this scanner reads were found in this artifact. What each scanner covers
0 findings · 0.2s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 1.8s
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
vv1.6.0
No Go modules were found in this artifact. What each scanner covers
0 findings · 0.1s
2 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Oct 4, 2026 | Caution92 | Flagged → Caution | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·n/a: not applicable | completed |
| Aug 9, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Caution badge are computed from those raw severities alone. Nothing below moved them.
Out of 13 findings across every scanner that examined this package.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
4 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: AAK-SECRET-004, RESOURCE_ABUSE_INFINITE_LOOP, AAK-MCP-HTTP-NOAUTH-SERVER-001 and 1 more · Files: tests/test_backend_protocol_scoping.py, /repo/tests/test_request_queue.py, tests/test_server_main.py and 1 more · reported by agent-audit-kit, cisco-skill-scanner
1 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: FILE_MAGIC_MISMATCH · Files: /repo/CLAUDE.md · reported by cisco-skill-scanner
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
2 AAK-SECRET-004
Files: src/outlook_mcp/config.py, src/outlook_mcp/mentions.py · reported by agent-audit-kit
2 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/src/outlook_mcp/exchange_client/email.py, /repo/src/outlook_mcp/exchange_client/facade.py · reported by cisco-skill-scanner
1 AAK-OAUTH-3P-001
Files: pyproject.toml · reported by agent-audit-kit
1 HIDDEN_DATA_FILE
Files: /repo/.gitlab-ci.yml · reported by cisco-skill-scanner
1 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md · reported by cisco-skill-scanner
1 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md · reported by cisco-skill-scanner
Hardcoded secrets and potential infinite loops detected
Hardcoded secrets are present in `src/outlook_mcp/config.py` and `src/outlook_mcp/mentions.py`, which could allow credential access. Additionally, potential infinite loops are identified in `src/outlook_mcp/exchange_client/email.py` and `src/outlook_mcp/exchange_client/facade.py`. These loops could lead to resource exhaustion or denial of service.
Concern level assessed by the review: High. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.