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Raw values for SMTP

io.github.ni-c/smtp-mcp · Registry status: active

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What the source declared verbatim, unchanged and uninterpreted. The derived values on the overview page are computed from these.

Evidence for this page · Source: MCP-Register · collected on 2026-09-04

Every value below comes from it. Where one differs, its origin is stated on its row.

Raw values
Description (raw)MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation
1 of 26,983 carry this value
Environment variables (raw)SMTP_HOST, SMTP_PORT, SMTP_TLS, SMTP_USER, SMTP_PASSWORD, SMTP_FROM, SMTP_ALLOW_SEND, SMTP_ALLOWED_RECIPIENTS, SMTP_MAX_RECIPIENTS, SMTP_MAX_SENDS_PER_HOUR, SMTP_MAX_MESSAGE_BYTES, SMTP_MAX_ATTACHMENT_BYTES, SMTP_ATTACHMENT_DIR, SMTP_ATTACHMENT_TYPES, SMTP_SIGNATURE, SMTP_AUDIT_LOG, SMTP_ALLOW_TOOLS, SMTP_DENY_TOOLS, SMTP_INSECURE_TLS, SMTP_HOST, SMTP_PORT, SMTP_TLS, SMTP_USER, SMTP_PASSWORD, SMTP_FROM, SMTP_ALLOW_SEND, SMTP_ALLOWED_RECIPIENTS, SMTP_MAX_RECIPIENTS, SMTP_MAX_SENDS_PER_HOUR, SMTP_MAX_MESSAGE_BYTES, SMTP_MAX_ATTACHMENT_BYTES, SMTP_ATTACHMENT_DIR, SMTP_ATTACHMENT_TYPES, SMTP_SIGNATURE, SMTP_AUDIT_LOG, SMTP_ALLOW_TOOLS, SMTP_DENY_TOOLS, SMTP_INSECURE_TLS
1 of 26,983 carry this value
Required secret variables (raw)SMTP_PASSWORD, SMTP_PASSWORD
1 of 26,983 carry this value
Transports (raw)stdio, stdio
390 of 26,983 carry this value
Path arguments (raw)confirmed absent
Repository (raw)https://github.com/ni-c/smtp-mcp
1 of 26,983 carry this value
Package registries (raw)npm, oci
83 of 26,983 carry this value
Required secret headers (raw)confirmed absent
Path environment variables (raw)confirmed absent
Remote URLs (raw)confirmed absent
Remote hosts (raw)confirmed absent
Registry status message (raw)confirmed absent
First listed in the registry (raw)2026-09-03
674 of 26,983 carry this value
Last changed in the registry (raw)2026-09-03
675 of 26,983 carry this value
Schema version of the raw record (raw)https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json
24,140 of 26,983 carry this value
Delivery form (raw)package
11,385 of 26,983 carry this value
Repository platform (raw)github
20,502 of 26,983 carry this value
Repository subfolder (raw)confirmed absent
Package identifiers (raw)@ni-c/smtp-mcp, ghcr.io/ni-c/smtp-mcp:0.1.0
1 of 26,983 carry this value
Package versions (raw)0.1.0
646 of 26,983 carry this value
Runtime hints (raw)confirmed absent
Environment variable formats (raw)boolean, number, string
52 of 26,983 carry this value
Environment variable descriptions (raw)SMTP_ALLOWED_RECIPIENTS=Comma-separated addresses and @domains this server may write to. Required with SMTP_ALLOW_SEND=true; "*" allows any. · SMTP_ALLOW_SEND=Set to "true" to register the sending tools. Defaults to false: the server cannot send until it is set. · SMTP_ALLOW_TOOLS=Comma-separated tool names, a prefix with one trailing *, or "essential" for the curated preset. · SMTP_ATTACHMENT_DIR=Directory attachments are read from. Unset means attachments are unavailable. · SMTP_ATTACHMENT_TYPES=Comma-separated content types that may be attached. Defaults to a document and image allowlist. · SMTP_AUDIT_LOG=File the audit lines are appended to, in addition to stderr. · SMTP_DENY_TOOLS=Comma-separated tool names or prefixes to remove, applied after SMTP_ALLOW_TOOLS. · SMTP_FROM=The only sender this server will use, e.g. "Name <person@example.net>". There is no from parameter. · SMTP_HOST=Hostname of the SMTP server, e.g. smtp.example.net. · SMTP_INSECURE_TLS=Set to "true" to accept self-signed certificates. Prefer a proper internal CA. · SMTP_MAX_ATTACHMENT_BYTES=Maximum size of a single attachment. Default 5242880. · SMTP_MAX_MESSAGE_BYTES=Maximum size of the composed message. Default 10485760. · SMTP_MAX_RECIPIENTS=Maximum distinct recipients across To, Cc and Bcc in one message. Default 10. · SMTP_MAX_SENDS_PER_HOUR=Sliding hourly cap on messages sent. Default 20. · SMTP_PASSWORD=Password or app-specific password for SMTP authentication. · SMTP_PORT=Port. Defaults to 587 for starttls, 465 for implicit, 25 for none. · SMTP_SIGNATURE=Text appended below the standard signature delimiter of every message. · SMTP_TLS=starttls (default), implicit or none. STARTTLS is required, never opportunistic. · SMTP_USER=Username for SMTP authentication.
1 of 26,983 carry this value
Icon formats (raw)confirmed absent

Position within the directory

How many of the 26,983 published entries carry the same measured value. A reference figure, not an assessment.

All 5 values together are carried by 124 of 26,983 entries.

tracevero · https://tracevero.com/mcp/io-github-ni-c-smtp-mcp/rohangaben