SuperMailbox

npx add-mcp 'https://api.supermailbox.app/mcp'

Ask ChatGPT or Claude about your inbox.

Connect SuperMailbox through MCP in ChatGPT, Claude, or another compatible AI app. Approve the connection, then find or summarize messages right in the conversation.

01

Add SuperMailbox

Enter the SuperMailbox MCP server URL in your compatible AI app.

02

Approve the connection

Sign in to SuperMailbox and review the access request.

03

Ask about your email

Use a prompt to find messages or summarize a thread.

Ask ChatGPT or Claude about your inbox.

Find a message

“Find the latest email about my delivery date.”

Summarize a thread

“Summarize the conversation about next week's project review.”

Surface a follow-up

“Which recent emails ask me to reply before Friday?”

Connect the inboxes you already use.

SuperMailbox brings supported mail accounts into one web inbox, with a separate connection for each account.

Gmail Connect with Google iCloud Mail Connect with an Apple app-specific password Outlook Connect with Microsoft Yahoo Mail Connect with a Yahoo app password Fastmail Connect with IMAP Other IMAP Add your mail server settings

Use the inbox that fits your day.

Keep everyday email in one place and bring in an AI assistant when it helps.

Use the SuperMailbox inbox on desktop or mobile to work through connected accounts.

• Search, read, reply, and write drafts
• Use attachments, folders, and mail rules

ChatGPTClaudeDotMuseMCP

Connect ChatGPT, Claude, Dot, Muse, or another compatible assistant to SuperMailbox through MCP. Approve its requested access, then work with connected mail in chat.

• Review all mailboxes for priorities, deadlines, and messages that need a reply.
• Draft replies and outreach; send messages when the assistant supports it and you grant send permission.
• Create SuperMailbox rules for new mail: move messages to folders, Trash, or Junk, or apply supported Gmail labels.
• Set up recurring reviews or alerts in AI apps that support scheduled tasks.
• Track follow-ups across conversations and draft the next message.

The essentials, together in one inbox.

Move between accounts without giving up the familiar work of reading, replying, and organizing mail.

One inbox, many accounts

Browse messages across connected accounts and switch to a single mailbox when you want.

Search and respond

Find messages, open attachments, write drafts, and reply from the web app.

Organize new messages

Create rules to move or label incoming messages and handle other supported actions.

Choose a sender address

Select an address configured for your connected mailbox when you compose or reply.

Bring your iCloud addresses into one place.

Connect iCloud Mail once, then use the inbox in SuperMailbox or ask ChatGPT about connected email through MCP.

• Use an Apple app-specific password to connect iCloud Mail.
• Custom-domain addresses configured in iCloud can appear as sender choices when available.
• Additional sender addresses share the connected mailbox; they are not separate mailbox slots. Get started

AI chat connected to multiple email inboxes through SuperMailbox MCP

Review connected apps and accounts.

See which AI apps are connected to SuperMailbox and manage their access from your account.

Review AI connections

See active app connections and the access each connection requested.

Revoke app access

Disconnect an authorized AI app from your SuperMailbox account.

Manage mailboxes

Review or remove connected mail accounts from your workspace.

Set up your inbox in three steps.

Connect a mailbox first, then choose how you want to work with your email.

01

Create your account

Sign in securely with a magic link and choose a plan.

02

Connect a mailbox

Add Gmail, iCloud Mail, Outlook, Yahoo, Fastmail, or another supported IMAP account.

03

Use the inbox

Read and organize email in the web app, and connect a compatible AI app if you want.

Pick the room your inbox needs.

Every plan starts with a seven-day free trial. Choose the mailbox limit that fits your life.

Save 16.7% 2 months free

Personal

$4.99 per month Save 16.7%

$4.16 per month, billed yearly

Billed $49.90 per year

Up to 2 mailboxes

Choose Personal

Plus

$8.99 per month Save 16.7%

$7.49 per month, billed yearly

Billed $89.90 per year

Up to 5 mailboxes

Choose Plus

Best value

Pro

$9.99 per month Save 16.7%

$8.33 per month, billed yearly

Billed $99.90 per year

Up to 20 mailboxes

Choose Pro

• Search, read, draft, reply, and send
• Connect your preferred AI apps
• Your email stays under your control

One seven-day trial per account. A payment method is required to start; cancel anytime.

A few things to know.

Which email providers can I connect?

SuperMailbox supports Gmail, iCloud Mail, Outlook, Yahoo Mail, Fastmail, and other IMAP accounts. The sign-in method depends on the provider.

Do I need ChatGPT to use SuperMailbox?

No. You can read and manage connected email in the SuperMailbox web app. MCP access is an optional way to use a compatible AI app.

How does iCloud custom-domain email work?

Connect the iCloud Mail account that owns those addresses. Sender addresses configured for that account may be available when composing, depending on what iCloud exposes.

Do sender addresses count toward my mailbox limit?

No. A mailbox is a connected email account. Additional sender addresses on that account share its inbox and do not use extra mailbox slots.