=over 4
-=item
+=item *
E-Mail type (e.g. "ham", "spam", "virus", ...) and size (bytes):
If C<size> is less than or equal to zero, C<size> is ignored.
-=item
+=item *
Spam score:
s:<value>
-=item
+=item *
Successful spam checks (e.g. "BAYES_99", "SUBJECT_DRUG_GAP_C", ...):