Attaching multiple mails to a new message

You can attach multiple emails from one thread to a new message.

1. Open the thread containing the messages you would like to forward.
2. Mark these messages by selecting them and pressing t on each. You can also select all messages of the thread (or none) using T.
3. After you selected them, press ; to apply an action to all marked messages. A bar at the bottom of the window appears.
4. Press C-y to yank all message ids of the mails you marked (copy them to your clipboard).
5. Open a new message. In the window, you can press A to insert message ids which you would like to attach. Just paste your clipboard. It will output the message ids separated by a comma. Now press Enter and all marked messages will be attached to your new mail.

This is currently not possible with multiple emails from different threads all at once. You would have to run the procedure for each thread.

Remember that you can select your clipboard with ". You can choose between PRIMARY and CLIPBOARD.