in iep-ses/src/main/java/com/netflix/iep/ses/EmailHeader.java [27:43]
static {
Set<String> denylist = new HashSet<>();
denylist.add("mime-version");
denylist.add("content-type");
denylist.add("content-disposition");
denylist.add("content-transfer-encoding");
denylist.add("content-id");
denylist.add("reply-to");
denylist.add("from");
denylist.add("to");
denylist.add("cc");
denylist.add("bcc");
denylist.add("subject");
denylist.add("x-ses-from-arn");
denylist.add("x-ses-configuration-set");
DENYLIST = Collections.unmodifiableSet(denylist);
}