Connect Claude Cowork to LotsMail
Ask Claude Cowork to read, search and draft replies in your LotsMail business inbox. Add LotsMail to Claude Cowork as a remote MCP server and sign in once.
LotsMail MCP server URL
https://api.lotsmail.to/mcpOr let Claude Cowork guide the setup: send it this prompt
Read https://lotsmail.to/skill.md and help me connect LotsMail for you.What Claude Cowork can do with LotsMail
Once connected, Claude Cowork can:
- Read and search your mailboxes: list conversations by folder, open a whole conversation and find messages by person, subject or text.
- Write drafts and reply drafts that wait in Drafts for you to review and send.
- Send, reply and send a draft, once you have turned sending on for that mailbox, and check whether each message was delivered.
- Mark messages read or unread, star them and move them between inbox, archive, trash and spam.
- Start domain setup and show how your domains are paid for. Domains, DNS, team access and agent permissions stay yours, in the dashboard.
The LotsMail dashboard does the whole job too: a full inbox on every device, plus domains, mailboxes, team and agent permissions. Your agent for speed, the dashboard for control.
You need
- Claude Desktop with Cowork available
- Permission to add a custom remote connector
- A LotsMail account. You can create one during sign-in.
Connect Claude Cowork to LotsMail
Add a custom connector
In Claude, open Customize → Connectors → + Add → Add custom connector. Name it LotsMail and use this URL.
https://api.lotsmail.to/mcpSign in
Complete the LotsMail sign-in and enable the connector in your Cowork task.
Check the tools
Ask your agent “List my LotsMail mailboxes” before asking it to change anything.
What to ask next
- “What came in for sales@ today? Summarise anything that needs a reply.”
- “Draft a reply to the latest message from the supplier and leave it for me to check.”
- “Find last month’s invoice from our supplier and tell me the amount and due date.”
- “Check whether my last email to Acme was delivered.”
If something goes wrong
- LotsMail tools are not available
- Check that LotsMail is enabled for this session and authentication has completed. Reload the connection or start a new session to refresh its tools.
Steps checked on 1 October 2026 against Claude: custom remote connectors.
Pricing
Current plans and prices are on https://lotsmail.to/pricing. Your agent’s own plan or usage fees are separate.
Claude Cowork and LotsMail: questions
How do I connect Claude Cowork to LotsMail?
Follow the Claude Cowork setup above to add https://api.lotsmail.to/mcp. Complete sign-in using the authentication method shown. Then ask “List my LotsMail mailboxes”.
Does Cowork keep LotsMail connected between tasks?
Once LotsMail is added as a custom connector and signed in, enable it for each Cowork task that needs it. Start a new session if its tools do not appear.
Do I need an API key to use LotsMail with Claude Cowork?
No. Claude Cowork signs in to LotsMail in your browser. API keys are for the REST API, for scripts and your own apps.
What does LotsMail cost?
Current plans and prices are on https://lotsmail.to/pricing. Your agent’s own plan or usage fees are separate.
Can my agent send email without me?
Only if you turn on sending for that mailbox. Sending is off until you do. With read or draft access your agent can search, read and write drafts that wait in Drafts for you to review and send.
Which mailboxes can my agent open?
Only the mailboxes you can open yourself. For each one you choose what agents may do: read and search, write drafts, or send. Owners do not get private mailboxes by default.
Can I limit who my agent emails?
Yes. A mailbox can be restricted to a list of addresses it may send to, and any other recipient refuses the whole send. Only a workspace owner or admin changes restrictions, in the dashboard.
Can my agent change my domain or DNS?
No. It can start domain setup, which gives you the steps and the dashboard link. Domains, DNS, billing, team access and agent permissions stay with you, in the dashboard.
LotsMail tools are not available
Check that LotsMail is enabled for this session and authentication has completed. Reload the connection or start a new session to refresh its tools.
