MCP, MCP server
Fastmail Mcp
An unofficial Model Context Protocol (MCP) server that provides access to the Fastmail API, enabling AI assistants to interact with email, contacts, and calendar data.
Compatibility: Not stated.
Grade C
One Medium finding. Read the findings before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit aa183ce143f2, unchanged since the check below.
INSTALL_LIFECYCLE_HOOK
Why this grade
- INSTALL_LIFECYCLE_HOOK Medium
A package install hook (preinstall, install, postinstall or prepare) runs a script.
package.json, line 14
prepare
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Concern
runs a script at install time.
INSTALL_LIFECYCLE_HOOK
package.json, line 14
prepare
Network
Concern
can reach a host that is not written as a fixed address. can reach attacker. The description does not name that host.
NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST
src/jmap-client.ts, line 205
const response = await fetch(this.auth.getSessionUrl(), {
src/jmap-client.ts, line 258
const response = await fetch(session.apiUrl, {
src/jmap-client.ts, line 1601
const response = await fetch(url, {
Show more
src/jmap-client.ts, line 1696
const response = await fetch(url, {
src/url-validation.test.ts, line 163
() => validateFastmailUrl('javascript:fetch("https://attacker")', 'baseUrl'),
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
scripts/scan-secrets.mjs, line 54
skip: (m) => /\$\{|process\.env|your-|REDACTED|example|placeholder|x{6,}|0{6,}|changeme|<[^>]+>/i.test(m),
.dxtignore, line 28
/tsconfig.json
.dxtignore, line 29
.env
Show more
.gitignore, line 4
*.log
.gitignore, line 5
.env
.gitignore, line 6
.env.local
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit aa183ce143f2. runs a script at install time. can reach a host that is not written as a fixed address. can reach attacker. The description does not name that host. reads a credential or environment file.
Date and source
Date checked:
github.com
Commit graded: aa183ce143f206bb46cf793aeeceef61e69543d6
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