office365-mcp (LotzerDigital/aws-office365mcp) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
Enables multiple users to securely connect their own Microsoft 365 account and use natural language to manage Outlook mail, Teams, and SharePoint/OneDrive files through Microsoft Graph, with support for shared mailboxes and admin governance.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
LotzerDigital
Source: Glama
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
Install from
M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
esbuild enables any website to send any requests to the development server and read the response
AWS_DEFAULT_REGIONAWS_REGIONOverrides the region for the artifact bucket.MCP_ARTIFACT_BUCKETS3 bucket for downloads. Required by every download tool — there is no base64 fallback by design.MCP_ARTIFACT_REGIONOverrides the region for the artifact bucket.MCP_ARTIFACT_URL_TTL_SECONDSLifetime of presigned URLs. Anyone holding one can fetch the file without authenticating, so keep it short.MCP_AUDIT_FILEJSONL sink for audit and security records, in addition to stderr. For self-hosted deployments; on Lambda, stderr already reaches CloudWatch.MCP_AUDIT_READS1 audits read tools as well as writes. Off by default because reads dominate volume. Independently of this setting, every mutating call, every failure, and every call naming another mailbox or user is always recorded — acting on someone else's mailbox is exactly what a compliance review asks about.PORTAll four hints declared on every tool
33/37 tools missing one or more hints — o365_calendar_list (missing: destructiveHint, idempotentHint); o365_calendar_read (missing: destructiveHint, idempotentHint); o365_calendar_event_write (missing: idempotentHint), +30 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
Only 10/37 tools referenced in tests (27%)
Write tests that reference each tool by name so every tool has at least one test.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/lotzerdigital-aws-office365mcp-lq7c2m)?variant=verified to the badge URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check