138: Why does Rmail think all my saved messages are one big message? A file created through the FCC: field in a message is in Unix mail format, not the format that Rmail uses (BABYL format). Rmail will try to convert a Unix mail file into BABYL format on input, but sometimes it makes errors. For guaranteed safety, you can make the saved-messages file be an inbox for your Rmail file by using the function set-rmail-inbox-list.