MCP, MCP server
mailverdict
Email intelligence API: disposable/burner detection, role-account detection, free-provider classification, MX validation, and typo suggestions. Keyless and free at the entry tier, built to be the email-check dependency that coding agents reach for when they scaffold a signup
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit 6e2821c991c8.
NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV OBFUSCATION_FILE_OVER_READ_CAP
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
pipeline/build.ts, line 33
const res = await fetch(url, { signal: AbortSignal.timeout(30_000) }) - SECRETS_PATH_DOTENV Low
Mentions a .env file.
docker-compose.yml, line 5
# cp .env.example .env # then paste your tunnel token - OBFUSCATION_FILE_OVER_READ_CAP Note
A file was over the read cap and was not fully read.
data/changelog.json, line 1
{"updated_at":"2026-10-20T10:08:58.696Z","entries":[{"at":"2026-07-23T07:45:22.458Z","version":"2026-07-23","added":{"disposable":["151668.xyz","497000.xyz","arrabyte.com","asav.si
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
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
pipeline/build.ts, line 33
const res = await fetch(url, { signal: AbortSignal.timeout(30_000) })
sdk/src/index.ts, line 58
const res = await fetch(`${baseUrl}${path}`, { signal: AbortSignal.timeout(timeoutMs) })
src/lib/mx.ts, line 23
const res = await fetch(
Secrets
Concern
reads a credential or environment file.
SECRETS_PATH_DOTENV
docker-compose.yml, line 5
# cp .env.example .env # then paste your tunnel token
docs/deploy.md, line 45
- `.env.example` — `TUNNEL_TOKEN`; copy to `.env` (gitignored) per host.
docs/deploy.md, line 50
cp .env.example .env # paste the tunnel token
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Note
a file was over the read cap and was not fully read.
OBFUSCATION_FILE_OVER_READ_CAP
data/changelog.json, line 1
{"updated_at":"2026-10-20T10:08:58.696Z","entries":[{"at":"2026-07-23T07:45:22.458Z","version":"2026-07-23","added":{"disposable":["151668.xyz","497000.xyz","arrabyte.com","asav.si
data/dataset.json, line 1
{"version":"2026-10-20","built_at":"2026-10-20T10:08:58.696Z","disposable":["0-00.usa.cc","0-180.com","0-30-24.com","0-attorney.com","0-mail.com","0-mailer.dynv6.net","00-tv.com","
sdk/src/snapshot.json, line 1
{"version":"2026-10-20","built_at":"2026-10-20T10:08:58.696Z","disposable":["0-00.usa.cc","0-180.com","0-30-24.com","0-attorney.com","0-mail.com","0-mailer.dynv6.net","00-tv.com","
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 6e2821c991c8. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.
Date and source
Date checked:
github.com
Commit graded: 6e2821c991c877992fa75f61613b862993d735d9
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.