mute thread in procmail

mute-procmail.md

:0 Wfh: formail.lock
| $HOME/src/procmail-thread/match-thread.sh $HOME/.refs.muted "Procmail-Muted: true"

:0
* Procmail-Muted: true
{
        SWITCHRC=$HOME/.procmailrc.markread
}


$ cat .procmailrc.markread 

#
# Courtesy of https://stuffphilwrites.com/2011/01/ultimate-procmail-recipe/
#

:0
{
  :0c # store as new
  "$DEST/"

  :0 # move to cur/ and append a :2,S to mark as read ("seen")
  * LASTFOLDER ?? /\/[^/]+$
  { tail=$MATCH }
  TRAP="mv '$LASTFOLDER' '$DEST/cur/$tail:2,S'"

  HOST
}