Exam JN0-696 topic 1 question 33 discussion

-- Exhibit --
user@host> show configuration security utm
custom-objects {
url-pattern {
block-juniper {
value *.spammer.com;
}
}
custom-url-category {
blacklist {
value block-juniper;
}
}
}
feature-profile {
anti-spam {
address-blacklist block-juniper;
sbl {
profile myprofile {
no-sbl-default-server;
spam-action block;
}
}
}
}
utm-policy wildcard-policy {
anti-spam {
smtp-profile myprofile;
}
}
-- Exhibit --
Click the Exhibit button.
You added a blacklist to your antispam policy to block any e-mails from the spammer.com domain. However, your users are complaining that they are still receiving spam e-mails from that domain. You run the utm test-string test and confirm that the blacklist is not working.
Referring to the exhibit, what is causing this problem?