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Interface Overview

MailCopilot has a clean three-column layout designed for efficient email management.

The sidebar is on the left side of the window. It contains:

  • Account selector -- switch between connected email accounts by clicking the account avatar at the top.
  • Folder list -- your email folders (Inbox, Sent, Drafts, Trash, Spam, Archive, and any custom folders). Each folder shows its unread message count as a badge.
  • Compose button -- opens a new message window.
  • Sync button -- manually triggers a synchronization with the mail server.
  • Settings button -- opens the application settings.
  • Unified Inbox -- if you have multiple accounts, this shows messages from all accounts combined in one view.
  • Work Offline -- toggles offline mode on and off. When enabled, MailCopilot stops all network activity and works entirely from cached data. You can read emails that have been previously synced, mark them as read or starred, and browse folders. Changes you make offline will be synced when you go back online. The button icon switches between a Wi-Fi symbol (online) and a crossed-out Wi-Fi symbol (offline).
  • Inbox Zero -- when you process emails (archive, delete, snooze, move to spam, or move to a folder) and your Inbox becomes empty, an "Inbox Zero!" congratulatory message appears in the message list area along with the count of emails you processed today. The counter resets automatically at midnight and on app restart.

The sidebar can be collapsed to a narrow icon-only mode by clicking the collapse button, giving more space to the message list and reading pane. Hover over icons to see tooltips.

Message List​

The middle column shows the list of messages in the currently selected folder. Each message displays:

  • Sender name and avatar
  • Subject line
  • Date or time
  • Unread indicator (bold text for unread messages)
  • Star/flag indicator
  • Attachment indicator (paperclip icon)
  • Thread count (if conversation grouping is enabled)

In Unified Inbox mode, each message also shows the account email address next to the sender name, so you can tell which account received it.

Filtering​

Above the message list, you can:

  • Search -- type in the search bar to find messages by sender, subject, or content.
  • Filter -- use the filter chip buttons to toggle filtering by Unread, With Attachments, or Starred messages. Click a chip to activate the filter; click it again to deactivate. You can combine multiple filters at the same time.

To change the sort order (by date, sender, or subject), go to Settings > Productivity > Sort Order.

Quick Actions on Hover​

When you hover over a message in the list, quick action buttons appear on the right side (without shifting the layout). These let you quickly:

  • Snooze the message
  • Archive it
  • Delete it
  • Mark as read/unread

Selecting Messages and Action Toolbar​

  • Click a message to select and read it.
  • Hold Shift and click to select a range.
  • Use the x key to toggle selection on individual messages.
  • An action toolbar is always visible above the message list. When you select one or more messages, the toolbar buttons become active, allowing you to delete, archive, mark as read/unread, star, and move messages. The toolbar works in all views, including the unified inbox.

Reading Pane​

The right column displays the content of the selected message:

  • Message headers -- from, to, cc, date.
  • Message body -- rendered as HTML in a secure sandboxed frame.
  • Attachments -- listed below the message body with download buttons.
  • Action buttons -- reply, reply all, forward, delete, archive, star, and mark as spam.

Resizable Columns​

You can resize the message list and reading pane by dragging the border between them. Your preferred width is remembered between sessions.

Light and Dark Themes​

MailCopilot supports both light and dark themes. You can switch between them in Settings > General > Theme. The interface adapts automatically based on your choice.