MailPane is a WordPress plugin that brings a native three-pane IMAP email client directly into the wp-admin dashboard. Designed to fit WordPress’s visual style, it lets users read, write, search, and organize messages without leaving their site or opening a separate app. MailPane works with IMAP providers including Gmail, Outlook, Yahoo, Fastmail, iCloud, Zoho, and custom servers.

Its features include mailbox search and filtering, reversible archive and move actions, attachment previews, multi-file sending, and protection that blocks remote images until approved. Messages are read live from the mail server rather than stored in WordPress. The free plugin supports one mailbox and is available under the GPL, with no account, licence key, or expiring trial required.

A paid add-on provides multiple mailboxes, an address book with contact import, and unread counts in the dashboard menu. Premium is licensed by site count, with annual pricing for updates. MailPane also offers a working browser-based demo that requires no signup or installation, allowing users to explore its features before downloading the plugin