How do hygiene tools detect disposable addresses?
Disposable addresses come from temporary email services (Mailinator, Guerrilla Mail, 10MinuteMail). Hygiene tools maintain databases of known disposable domains and detect patterns indicating temporary address services.
Detection methods: domain matching against known disposable providers (thousands of domains), pattern recognition for programmatically generated addresses, and behavioral indicators from historical data.
Why it matters: disposable addresses indicate low-value signups, possible abuse, or users avoiding long-term relationship. Blocking or flagging them protects list quality. However, some legitimate users prefer privacy; consider whether your use case warrants strict blocking.
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