In that case, you have not entered the delimiter correctly as specified in RFC-3676:
A signature block should be delimited from the body of the message by a single line consisting of exactly two hyphens, followed by a space, followed by the end of line
(i.e., in C-notation: "-- \n").
Solution: Do not enter the '--' yourself but let Usenapp add it for you.
If you do not add this delimiter in your signature yourself, Usenapp will automatically add the delimiter according to the RFC.
Maybe Usenapp should check for incorrect delimiters and replace them.
I'll see what I can do.
