Managing your email attachments in Alpine on Linux
Step 1. Open the message with the attachment
Step 2. Press '>' to view the attachments
Step 3. Select the attachment with the arrow keys and press 'S' to save it
Step 4. Press 'D' to mark the attachment as deleted:
Step 5: Press '<' and then 'S' to return to the email view and to save the email:
Step 6: When you press 'Y' to save the email to a new folder the attachment is removed: