Multi Mail is listed as active in the registry but did not answer our last check. It exposes 30 tools. Last commit 2 Nov 2026.
Gmail, Outlook, Hotmail, Microsoft 365, iCloud, Fastmail, other IMAP mailboxes: search, read, send.
Uptime history
42 days of history · worst day 0%
42 days agonow
0.0%
Uptime 24h
0 of 182 checks
30
Tools
read from the server
101 ms
Response time
average over 24h
0
Stars
last commit 2 Nov 2026
What changed 53
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 6 October 2026. No other catalogue keeps this.
9 Oct
6 tool descriptions were rewritten7 times that day
drafts_update, labels_create, labels_delete and 3 more
9 Oct
2 tools changed the parameters they ask for
messages_list, messages_list_all_mailboxes
8 Oct
29 tools changed the parameters they ask for31 times that day
drafts_create, drafts_delete, drafts_forward and 26 more
8 Oct
6 tool descriptions were rewritten
mailboxes_list, messages_list, messages_list_all_mailboxes and 3 more
6 Oct
7 tools changed the parameters they ask for
drafts_create, drafts_forward, drafts_reply and 4 more
and 3 more, back to 6 October 2026
Multi Mail does not always answer
Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.
run in your terminal
claude mcp add mail --transport http https://lumman.co/mcp/mailSettings → Connectors → Add custom connector, then paste this address
https://lumman.co/mcp/mail~/.codex/config.toml
[mcp_servers.mail]
url = "https://lumman.co/mcp/mail".cursor/mcp.json
{
"mcpServers": {
"mail": {
"url": "https://lumman.co/mcp/mail"
}
}
}.vscode/mcp.json
{
"servers": {
"mail": {
"type": "http",
"url": "https://lumman.co/mcp/mail"
}
}
}This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.
Available tools 30
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
messages
messages_attachments_get
Read one attachment of a message. The answer is what it says, as plain text; with as original it is the file itself, base64. messages_get and threads_get name a message's attachments and their sizes. Either answer names the address the original is served at whole, to a GET carrying this same credential.
messages_forward
Forward one message to the addresses you name, with the files it carries, inside the thread it already sits in. Only the provider's own limit applies to what it carries. Call this only when the person asked for this message to go; when they asked to prepare one, draft it instead. A request id already spent sends nothing again: the answer says whether that send went or may have gone.
messages_get
Read one message in a connected mailbox, with its headers and its body.
messages_list
Search one connected mailbox in its own provider's query language, Gmail's or Outlook's. The mail of every mailbox mailboxes_list names is read and written with Multi Mail's tools.
messages_list_all_mailboxes
Search every mailbox you have connected in one call. The answer names the mailbox each result came from, names any mailbox it could not search, and is merged newest first by when each message arrived, a thread by its newest. The mail of every mailbox mailboxes_list names is read and written with Multi Mail's tools.
messages_reply
Reply to a message, inside its own thread and quoting it below the reply: to whoever wrote it, or with replyAll to everyone on it. Call this only when the person asked for this message to go; when they asked to prepare one, draft it instead. A request id already spent sends nothing again: the answer says whether that send went or may have gone.
messages_send
Compose a new message in a connected mailbox and send it in one call. Call this only when the person asked for this message to go; when they asked to prepare one, draft it instead. A request id already spent sends nothing again: the answer says whether that send went or may have gone.
settings
settings_filters_create
Create a rule that files incoming mail in a connected mailbox. A rule that carries mail out of the mailbox, or that bins or junks what it matches, is refused, whether or not the provider would take it. An Outlook mailbox's rule files only under labels or out of the inbox (removeLabelIds INBOX).
settings_filters_delete
Delete one rule by its id. Mail it already filed stays where it is.
settings_filters_list
List the rules a connected mailbox files incoming mail by.
settings_get_vacation
Read whether a connected mailbox answers mail automatically, what it says, and any schedule or restriction it carries.
settings_send_as_get
Read the signature on the mailbox's own send-as identity, as HTML. A mailbox with no signature answers without one. Gmail mailboxes only: an Outlook mailbox exposes no signature to read.
settings_send_as_patch
Replace the signature on the mailbox's own send-as identity. Nothing of the old one is kept, so read it first with settings_send_as_get. An empty signature clears it. Gmail mailboxes only: an Outlook mailbox exposes no signature to write.
settings_update_vacation
Turn the vacation responder on or off. A Gmail mailbox replaces the whole responder, so a schedule or a restriction it already held is not kept; an Outlook mailbox keeps what this call does not name, and holds no subject.
drafts
drafts_create
Compose a message in a connected mailbox and keep it there as a draft.
drafts_delete
Throw away a draft. Nothing already sent is touched. Gmail mailboxes only: an Outlook draft keeps its identifier once sent, so discarding one could delete sent mail.
drafts_forward
Compose a forward of a message as a draft, with the files it carries and inside the thread it already sits in. Nothing leaves the mailbox until the draft is sent.
drafts_reply
Compose a reply to a message as a draft, inside the thread it answers and quoting it below the reply: to whoever wrote it, or with replyAll to everyone on it. Nothing leaves the mailbox until the draft is sent.
drafts_send
Send a draft. It leaves the mailbox and consumes the draft. Only a draft is sent: a message already sent or received is refused, and nothing leaves. Call this only when the person asked for this message to go; when they asked to prepare one, draft it instead. A request id already spent sends nothing again: the answer says whether that send went or may have gone.
drafts_update
Change a draft in a connected mailbox. A field the call leaves out stays as the draft has it. A mailbox whose provider is imap keeps the edited draft under a new id the answer names, and the old id then reads nothing; an old version its server did not remove stays in Drafts, named as previousVersionId.
threads
threads_archive
Take one thread out of the inbox. It stays in the mailbox and in search. A mailbox whose provider is imap moves its inbox messages into its archive folder, made as Archive where it has none, each under a new id the answer names.
threads_get
Read every message of one thread in a connected mailbox, oldest first.
threads_modify
Apply and remove labels on one thread, or one message of it - an Outlook mailbox's categories are its labels. The ids come from labels_list. Adding SPAM junks it, and taking SPAM off brings it back to the inbox. In a Gmail mailbox adding TRASH bins it too; an Outlook mailbox takes no other id; a mailbox whose provider is imap takes only UNREAD, STARRED, SPAM and its folders' labels, one folder a call: adding a folder's label moves the inbox messages into it and removing it moves its messages back to the inbox, each message moved taking a new id, which the answer names.
threads_trash
Move one thread, or one message of it, to the trash - Gmail's bin, an Outlook mailbox's Deleted Items, the trash folder of a mailbox whose provider is imap - where it stays until threads_untrash brings it back or the provider's own retention ends it. In a mailbox whose provider is imap each moved message takes a new id, which the answer names.
threads_untrash
Bring one thread, or one message of it, back out of the trash. A mailbox whose provider is imap puts a draft back in its drafts, the owner's own mail in sent mail and the rest in the inbox, each under a new id the answer names.
labels
labels_create
Create a label in a connected mailbox and answer the id it is applied by. In a Gmail mailbox, and as a folder in one whose provider is imap, a / nests it under the label before it, made first where missing; in an Outlook mailbox a / is just a character.
labels_delete
Delete one label, by its id from labels_list. No message is deleted: in a Gmail mailbox the label comes off every message; an Outlook mailbox's category leaves its list, and the messages that carried it keep its name. A mailbox whose provider is imap deletes only a folder holding no mail and no folder.
labels_list
List the labels a connected mailbox holds, by the id each is applied by. A mailbox whose provider is imap holds its folders as labels, nested by /, beside UNREAD, STARRED and SPAM.
labels_update
Rename a label, recolour it, or both. The id comes from labels_list. An Outlook mailbox's categories are its labels, and Microsoft lets one take only a new colour. A mailbox whose provider is imap renames its folder, which takes no colour, and answers the label's new id.
mailboxes
mailboxes_list
List the connected mailboxes that answer, each by the name a tool's mailbox input takes, and the tools its provider does not offer. The mail of every mailbox mailboxes_list names is read and written with Multi Mail's tools.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://lumman.co/mcp/mail | streamable-http | answering | 101 ms | 8 min ago |
| https://mail.lumman.co/mcp | streamable-http | answering | 92 ms | 8 min ago |
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Multi Mail — questions
Answers built from our own checks of this server.
What can Multi Mail do?
It exposes 30 tools, read directly from the server on our last check. Among them: drafts_create, drafts_delete, drafts_forward, drafts_reply, drafts_send, drafts_update and 24 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
What is Multi Mail mostly used for?
Its tools cluster around settings, messages and drafts. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Multi Mail working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 182 checks got a reply (0.0%), average response time 101 ms. The bar chart above shows every period we have measured.
The registry lists Multi Mail as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Multi Mail?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Multi Mail need an API key?
No. Multi Mail completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 30 of them are readable on this page. This is what we observed, not what the docs claim.
Is Multi Mail open source?
The code is open source: it is published under the MIT licence and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at lumman.co, which runs on its operator's own terms.