BlueMail marks replied and forwarded mail with a small arrow at the left of the row, in place of the sender's avatar:
- A forwarded email shows a forward arrow, pointing right.
- A replied email shows a reply arrow, pointing left.
These appear only when sender avatars are switched off, and with Conversations off as well — the arrow takes the avatar's place rather than sitting on top of it. With avatars on, the space is used for the avatar and its own indicators instead; see the symbols on a sender's avatar.
