This Perl script tries to make an educated guess whether a string is an email address or a message ID. Reiner Steib translated this script to Lisp code for GNU Emacs, and it is now part of Gnus.
Boris Piwinger has written a different script which also categorizes message IDs, mostly based on patterns for many newsreaders and servers.
This script contacts an NNTP server to obtain the article with the message ID given on the command line.
This script converts a
nnml mail folder to a
maildir mail folder. The script can be invoked repeatedly, and it skips messages which already exists in the destination folder.
This excel spreadsheet contains a macro which can rename references in command bars. To the author's knowledge, there is no built-in search and replace functionality for those references. The macro is particularly useful if you your home directory has moved and you want to avoid the work of renaming each reference individually. A plain text version of the macro is available, too.
2002-02-18: Added link to Boris' solution to the message ID problem.
2002-02-24: Python script for fetching articles added.
2003-07-30: Reiner Steib wrote a GNU Emacs port of the message ID script.
2003-08-09: Excel 2000 macro for renaming references in command bars added.
2003-09-22: Script to convert
maildir folders added.