[jcl]

How do you figure "almost all"? Even if the text could only contain paragraphs of length 3 and 4, the spacing alone would be incorrect in half the cases (assuming that a 3-4 and 4-3 split is equally likely).

(Of course, we are leaving aside the fact that the full body of the message contains an additional one-line paragraph, which could also be considered part of a correctly capitalized and spaced message.)

[rbanffy]

One would have to analyze all previous relevant correspondence out of the AS's office as to measure vocabulary and other structural elements.

It would be a fun project.