mailcow/data/conf/dovecot/global_sieve_before

# global_sieve_before script
# global_sieve_before -> user sieve_before (mailcow UI) -> user sieve_after (mailcow UI) -> global_sieve_after

require ["imap4flags", "mailbox", "fileinto"];

if allof(header :contains ["Chat-Version"] [""],
  header :contains ["Auto-Submitted"] ["auto-replied"]) {
  if mailboxexists "DeltaChat" {
    fileinto "DeltaChat";
  } else {
    fileinto :create "DeltaChat";
  }
  stop;
}

if allof(header :contains ["Chat-Version"] [""],
  header :contains ["Autocrypt"] [""]) {
  setflag "\\seen";
  stop;
}