http://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7ozyd.onion/support/sieve-advanced-custom-filters
Implicit assignation of a variable: The most interesting use case of variables is when using a :
matches test. Let’s take the following example, where the email sender is
[email protected] : require "variables";
require "fileinto";
# do a
matches test
if header :
matches "from" "*@*" {
# The first *
matches "test", the second "protonmail"