# debugging VERBOSE=yes LOGFILE=.procmailrc.log # One often receives duplicate messages for cross-postings to mailing # lists, or explicit replies to a post from you in addition to the # mailing list message. # # The following recipe eliminates all duplicate messages. It tells # formail(1) to keep a cache file of the Message-IDs of the most recent # messages you've received. Since Message-IDs are guaranteed unique for # distinct messages, they are ideally suited to weed out duplicates. # # all recipes start with `:0'. # W - wait for completion, suppressing `program failure' message. # h - send only headers to the subprogram. # : msgid.lock - locking using given file. # :0 Wh: msgid.lock | formail -D 65536 .saves.msgid