- This is a program to decode MIME messages. The program expects one input
-file (either on command line or on stdin) which is treated as an RFC822
-message, and decodes to stdout or an output file. If the file is not an RFC822
-message it is just copied to the output one-to-one. If the file is a simple
-RFC822 message it is decoded as one part. If it is a MIME message with multiple
-parts ("attachments") all parts are decoded. Decoding can be controlled by
-command-line options.
+ This is a program to decode MIME messages. The program expects one
+input file (either on command line or on stdin) which is treated as an
+RFC822 message, and decodes to stdout or an output file. If the file is
+not an RFC822 message it is just copied to the output one-to-one. If the
+file is a simple RFC822 message it is decoded as one part. If it is a
+MIME message with multiple parts ("attachments") all parts are decoded.
+Decoding can be controlled by command-line options.
+
+ Think about said mail archive; for example, its maintainer wants to
+put there only texts, convert PDF/Postscript to text, pass HTML and
+images decoding base64 to html but leaving images encoded, and ignore
+everything else. This is how it could be done:
+
+ mimedecode.py -t application/pdf -t application/postscript -t text/plain -b text/html -B 'image/*' -i '*/*'