string

Mail Tool is confused about the state
of your Mail File.
Cause
This message appears in a pop-up dialog box whenever you ask mailtool(1)(1) to
access messages after another mail reader has modified your inbox. A request
follows: "Please Quit this Mail Tool."
Action
Click "Continue" to close the dialog box, then exit mailtool(1). If you continue trying
to read mail, messages deleted by the other mail reader will never appear, and
mailtool(1) will fail to see any new messages.
mail: Your mailfile was found to be
corrupted (Content-length mismatch).
Cause
This message comes from mail(1) or mailx(1) whenever it detects messages with a
different content length than advertised. The mail(1) program tells you which
message might be truncated or might have another message concatenated to it.
Two common causes of content length mismatches are the simultaneous use of
different mail readers (such as mail(1) and mailtool(1)), or using a mail reading
program (or an editor) that does not update the Content-Length field after altering a
message.
Action
The mailx(1) program can usually recover from this error and delineate mail
message boundaries correctly. Pay close attention to the message that might be
truncated or combined with another message, and to all messages after that one. If a
mail file becomes hopelessly corrupted, run it through a text editor to eliminate all
Content-Length lines, and ensure that each message has a From (no colon) line for
each message, preceded by a blank line.
To avoid mailfile corruption, exit from mailtool(1) without saving changes when you
are currently running mail(1) or mailx(1).
Alphabetical Message Listing 109