- by "Lotus Notes Release 5.0.5 September 22, 2000"
# max. 9 lines of .sig
s/\n-- (?:\n[^\n]*){0,9}$//gs;
# "Original Message"/"Puvodni zprava" etc. up to empty line
- s/(^|\n)[\s^\n]*-----[\w\s]*-----[\s^\n]*(?:\n[^\n]+)*\n{2,}(?:\s*[^>\s].*$)?/\n/gs;
+ # "- - - Original message: - - -" is by "Lotus Notes Release 5.0.5 September 22, 2000"
+ s/(^|\n)[\s^\n]*(?:-----[\w\s]*-----|- - - Original message: - - -)[\s^\n]*(?:\n[^\n]+)*\n{2,}(?:\s*[^>\s].*$)?/\n/gs;
# Remove "..." lines (is it used by anyone except me?)
s/^\Q...\E$/*/gm;
# quoting "> "