7 GitHub, Travis, AppVeyor, PyPI.
10 Process message/delivery-status and text/rfc822-headers subparts.
13 Never decode subparts of multipart/encrypted and multipart/signed messages but
14 allow processing of headers of the top-level part, ignoring the top-level part
15 with -I, aborting it with -e or saving the part or subparts with --save-*.
18 Convert dates to the current locale and timezone (with an option?)
21 Allow -d and -p accept shell-like patterns and/or regular expressions:
22 -d content-*,-content-*-encoding
25 Add option --save-as='%format' to generate names for --save-* files. Develop
26 a DSL to conditionally use values of headers, parameters and the counter.