Change option -d to accept a list of headers: -d h1,h2,h3,...


Change option -d to decode all headers and accept a list of exceptions:
-d *,-h1,-h2,...


Change option -p to accept lists of headers and parameters:
-p h1,h2,h3:p1,p2,p3
Allow * and exceptions:
-p h1,h2,h3:*,-p1,-p2,-p3
-p *,-h1,-h2,-h3:p1,p2,p3
-p *,-h1,-h2,-h3:*,-p1,-p2,-p3


#Add option --params=header to decode all parameters for the header
#(except -p).
#
#
#Add options
#--all-headers to decode all headers (except -d)
#--all-params to decode all parameters for all headers (except -p)
#--all-headers-params to decode all header values + decode all parameters
#for all headers (except -d and -p).


Add option -s to save decoded parts to files.

Add option -O to set the destination directory.


Add an option to skip content-decoding a binary attachement (leave it as
base64 or such).


Allow -d and -p accept shell-like patterns and/or regular expressions:
-d content-*,-content-*-exncoding


Never touch multipart/encrypted and multipart/signed.