Defense can be against (bulk spammers).Logical formLearned from2 sentences. Spammers may use addresses.Logical formLearned from2 sentences. A spammer may use an (e-mail address).Logical formLearned from2 sentences. A provider may pertain-to a spammer.Logical formLearned from2 sentences. A spammer can be on a net.Logical formLearned from2 sentences. Spammers may be identified.Logical formLearned from2 sentences. Spammers can be in a us-state.Logical formLearned from2 sentences. An attempt can be by spammers.Logical formLearned from2 sentences. Spammers may send a (spam e-mail).Logical formLearned from2 sentences. A spammer may see a bounce.Logical formLearned from2 sentences. A spammer may have a list of (e-mail addresses).Logical formLearned from2 sentences. An injunction can be against a spammer.Logical formLearned from2 sentences. Tactics may be used by spammers.Logical formLearned from2 sentences. Spammers may tweak e-mail.Logical formLearned from2 sentences. Spammers may scan (registration sites).Logical formLearned from2 sentences.