We've found some .msg files in the wild that have a CREATION_TIME that
has all 64 bits set: 9223372036854775807.
Adding this number of 100ns intervals to the base timestamp of
1601-01-01 results in a timestamp somewhere in the year 30828 which is
not supported by Python's datetime module, as datetime.MAXYEAR is
currently 9999.
Co-authored-by: Martijn van de Streek <martijn.vandestreek@exxellence.nl>
