Epson Multi-mode Data Controller MFJ-1278B - Manual (Page 151)

MFJ-1278B MULTI-MODE ADVANCED OPERATION
You have new mail!
This is basically the same as the You have mail! message, but this indicates that new mail has
been added to the mailbox since the last time it was accessed.
?EH
This message occurs when a command issued to the Easy Mail mailbox is not understood.
This could be an out of range slot number, missing slot number where one is required, or bad
command.
Cannot, not yours
This message occurs when a remote user attempts to kill or read a message that is not his, or
he tries to read personal message by or for someone else.
?Mailbox full
This message occurs when either all of the available slots are full, or the actual message
space is full. Messages must be killed to recover from this error.
Not found
This message occurs when one attempts to read or kill a non-existent message from an empty
slot.
None found
A parameterless Kill or Read command did not find any messages addressed to the user.
No mail
A parameterless read command did not find any mail addressed to user or due to mailbox
being empty.