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Fastmail List Mailboxes

List mailboxes (folders) in Fastmail via JMAP Mailbox/get. Results include id, name, role (e.g. inbox, trash), and other metadata. Use mailbox ids from this tool with fastmail_search_emails and fastmail_move_email.

View Fastmail Tools

Providers

This tool works seamlessly with the following services

Fastmail

Fastmail is an email provider with a modern standards-based API via JMAP. These tools let you list mailboxes, search and fetch emails, triage messages (read/unread, move), send email via JMAP submission, and manage Fastmail Masked Email addresses.

Available in Bundles

Fastmail Tools

email

Fastmail is an email provider with a modern standards-based API via JMAP. These tools let you list mailboxes, search and fetch emails, triage messages (read/unread, move), send email via JMAP submission, and manage Fastmail Masked Email addresses.

Tool Information

Status
Active
Version
1.0.0
CreatedDecember 27, 2025
UpdatedFebruary 1, 2026

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Fastmail List Mailboxes [0FC] - Fastmail • MCP Tools