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Read, search and organise any IMAP mailbox, with writes off by default
IMAP mailbox is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 76/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding IMAP mailbox to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
npx -y @ni-c/imap-mcp@0.5.3Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-19T13:28:01.468092Z",
"publishedAt": "2026-10-19T13:28:01.468092Z",
"statusChangedAt": "2026-10-19T13:28:01.468092Z"
}
},
"server": {
"name": "io.github.ni-c/imap-mcp",
"title": "IMAP mailbox",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "0.5.3",
"packages": [
{
"version": "0.5.3",
"transport": {
"type": "stdio"
},
"identifier": "@ni-c/imap-mcp",
"registryType": "npm",
"environmentVariables": [
{
"name": "IMAP_HOST",
"format": "string",
"isRequired": true,
"description": "Hostname of the IMAP server, e.g. imap.example.net"
},
{
"name": "IMAP_USER",
"format": "string",
"isRequired": true,
"description": "Mailbox user name"
},
{
"name": "IMAP_PASSWORD",
"format": "string",
"isSecret": true,
"isRequired": true,
"description": "Mailbox password or app password"
},
{
"name": "IMAP_PORT",
"format": "number",
"description": "Defaults to 993 with implicit TLS, 143 otherwise"
},
{
"name": "IMAP_TLS",
"format": "string",
"description": "implicit (default), starttls or none"
},
{
"name": "IMAP_MAILBOX",
"format": "string",
"description": "Default mailbox to work in (default: INBOX)"
},
{
"name": "IMAP_SEEN_KEYWORD",
"format": "string",
"description": "IMAP keyword marking what the assistant has already seen (default: AiSeen)"
},
{
"name": "IMAP_READ_ONLY",
"format": "boolean",
"description": "Set to false to register the mailbox write tools; defaults to true"
},
{
"name": "IMAP_ALLOW_TOOLS",
"format": "string",
"description": "Comma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools)"
},
{
"name": "IMAP_DENY_TOOLS",
"format": "string",
"description": "Comma-separated tool names or list_* prefixes to remove from whatever IMAP_ALLOW_TOOLS left"
},
{
"name": "IMAP_DOWNLOAD_DIR",
"format": "string",
"description": "Directory attachments may be written to; unset means the server never touches the filesystem"
},
{
"name": "IMAP_INSECURE_TLS",
"format": "boolean",
"description": "Set to true to accept self-signed certificates, scoped to this connection"
},
{
"name": "IMAP_DRAFTS_MAILBOX",
"format": "string",
"description": "Drafts folder to save into; by default the one flagged \\Drafts is used"
},
{
"name": "IMAP_MAX_MESSAGES",
"format": "number",
"description": "Default number of messages a listing returns (default: 100)"
},
{
"name": "IMAP_MAX_ATTACHMENT_BYTES",
"format": "number",
"description": "Ceiling for returning an attachment inline (default: 1048576)"
},
{
"name": "IMAP_MAX_DOWNLOAD_BYTES",
"format": "number",
"description": "Ceiling for writing an attachment to disk (default: 26214400)"
},
{
"name": "IMAP_MAX_EXTRACT_BYTES",
"format": "number",
"description": "Ceiling for reading a document's text with mode=text (default: 10485760, maximum: 67108864)"
},
{
"name": "IMAP_ATTACHMENT_TYPES",
"format": "string",
"description": "Comma-separated content-type allowlist for attachments"
},
{
"name": "IMAP_TRUSTED_AUTHSERV_ID",
"format": "string",
"description": "authserv-id your provider stamps into Authentication-Results; without it every verdict is reported as forgeable"
}
]
},
{
"transport": {
"type": "stdio"
},
"identifier": "ghcr.io/ni-c/imap-mcp:0.5.3",
"registryType": "oci",
"environmentVariables": [
{
"name": "IMAP_HOST",
"format": "string",
"isRequired": true,
"description": "Hostname of the IMAP server, e.g. imap.example.net"
},
{
"name": "IMAP_USER",
"format": "string",
"isRequired": true,
"description": "Mailbox user name"
},
{
"name": "IMAP_PASSWORD",
"format": "string",
"isSecret": true,
"isRequired": true,
"description": "Mailbox password or app password"
},
{
"name": "IMAP_PORT",
"format": "number",
"description": "Defaults to 993 with implicit TLS, 143 otherwise"
},
{
"name": "IMAP_TLS",
"format": "string",
"description": "implicit (default), starttls or none"
},
{
"name": "IMAP_MAILBOX",
"format": "string",
"description": "Default mailbox to work in (default: INBOX)"
},
{
"name": "IMAP_SEEN_KEYWORD",
"format": "string",
"description": "IMAP keyword marking what the assistant has already seen (default: AiSeen)"
},
{
"name": "IMAP_READ_ONLY",
"format": "boolean",
"description": "Set to false to register the mailbox write tools; defaults to true"
},
{
"name": "IMAP_ALLOW_TOOLS",
"format": "string",
"description": "Comma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools)"
},
{
"name": "IMAP_DENY_TOOLS",
"format": "string",
"description": "Comma-separated tool names or list_* prefixes to remove from whatever IMAP_ALLOW_TOOLS left"
},
{
"name": "IMAP_DOWNLOAD_DIR",
"format": "string",
"description": "Directory attachments may be written to; unset means the server never touches the filesystem"
},
{
"name": "IMAP_INSECURE_TLS",
"format": "boolean",
"description": "Set to true to accept self-signed certificates, scoped to this connection"
},
{
"name": "IMAP_DRAFTS_MAILBOX",
"format": "string",
"description": "Drafts folder to save into; by default the one flagged \\Drafts is used"
},
{
"name": "IMAP_MAX_MESSAGES",
"format": "number",
"description": "Default number of messages a listing returns (default: 100)"
},
{
"name": "IMAP_MAX_ATTACHMENT_BYTES",
"format": "number",
"description": "Ceiling for returning an attachment inline (default: 1048576)"
},
{
"name": "IMAP_MAX_DOWNLOAD_BYTES",
"format": "number",
"description": "Ceiling for writing an attachment to disk (default: 26214400)"
},
{
"name": "IMAP_MAX_EXTRACT_BYTES",
"format": "number",
"description": "Ceiling for reading a document's text with mode=text (default: 10485760, maximum: 67108864)"
},
{
"name": "IMAP_ATTACHMENT_TYPES",
"format": "string",
"description": "Comma-separated content-type allowlist for attachments"
},
{
"name": "IMAP_TRUSTED_AUTHSERV_ID",
"format": "string",
"description": "authserv-id your provider stamps into Authentication-Results; without it every verdict is reported as forgeable"
}
]
}
],
"repository": {
"url": "https://github.com/ni-c/imap-mcp",
"source": "github"
},
"websiteUrl": "https://imap-mcp.ni-c.de",
"description": "Read, search and organise any IMAP mailbox, with writes off by default"
}
}