v0.7.3

• The filter-bar toggle in the view header is now a labeled View settings
  button sitting right of the notification bell, instead of an unlabeled
  sliders icon.
• Email-address links in a message now work: clicking a mailto: link opens
  a new message with the address — and any subject or body the link carries —
  already filled in.
• Right-clicking inside a message now offers Copy Email Address on
  address links, Copy Link Address on web links, and Copy on selected
  text.
• The combined inbox sidebar gains a Favourites group: right-click any view
  inside an account's section to add it, and it appears above Filtered
  views with its account's label — one click instead of expanding the
  account every time. Right-click again to remove it.
• The filter/sorting bar can now be hidden with the new View settings
  button beside the view name, and the choice is remembered. A blue dot on the
  button warns when a hidden filter is narrowing the list.
• The select-all checkbox moved from the filter bar to the left of the view
  title, heading the list it selects. Its behavior is unchanged — always
  visible, tri-state, Select all/Deselect all.
• The combined inbox no longer paints an account-colored stripe on every row —
  the list reads like a normal thread list. Pinned split-inbox sections keep
  their color stripe.
• The message header now shows the address a mail was delivered to next to
  the recipient's name — with several accounts or aliases you can see at a
  glance which address it landed on. Printed conversations list every
  recipient in full.
• Collapsed messages in a conversation now show just the sender's name, like
  the conversation list — the email address no longer crowds the preview text.
• An expanded message in a thread can now be collapsed again — click its
  header to fold it back to the one-line row.
• The sidebar border shows its resize cursor only when dragging would actually
  change something — a row is cut off or the sidebar is wider than its minimum.
• The Inbox now shows unread mail in an Unread section above the date groups
  by default. Turn it off with the Unread first toolbar chip and
  Update view — inboxes with a saved view customization are untouched.
• The sidebar can now be widened by dragging its right border — up to the point
  where its longest account or label name fits without truncating. Double-click
  the border to snap back to the default width; the chosen width is remembered.
• A new app icon: a sealed envelope in NoMail blue, drawn in Apple's current
  icon style. On macOS 26 it renders in real Liquid Glass — including the
  system's dark, clear and tinted icon modes — and older macOS versions get the
  matching classic version.