Jafner.net/dotfiles/sieve/important_script.txt

require ["fileinto", "include", "environment", "variables", "relational", "comparator-i;ascii-numeric", "spamtest", "regex", "imap4flags"];

# Generated: Do not run this script on spam messages
if allof (environment :matches "vnd.proton.spam-threshold" "*",
spamtest :value "ge" :comparator "i;ascii-numeric" "${1}")
{
    return;
}

if allof (address :all :comparator "i;unicode-casemap" :contains "From" [important_domains]) {
    fileinto "Important";
    addflag "\\Flagged";
    keep;
    stop;
}

# Common subjects relevant to security events
elsif header :contains "subject" ["security alert", "security notification", "login", "sign-on", 
"sign-in", "sign in", "sign on", "email address", "email change", "password", "terms of service"] 
{
    fileinto "Important";
    addflag "\\Flagged";
    stop;
}

# Commonly used security services
elsif address :matches :domain "from" ["*lastpass.com", "*logme.in", "*okta.com", "*accounts.google.com", 
"*1password.com", "*haveibeenpwned.com", "*nextdns.io"]
{
    fileinto "Important";
    addflag "\\Flagged";
    stop;
}

elsif header :list "from" ":addrbook:personal?label=Family"
{
    fileinto "Important";
    addflag "\\Flagged";
    stop;
}

elsif address :matches "from" ["*@*.us", "@*.gov"]
{
    fileinto "Important";
    addflag "\\Flagged";
    stop;
}