Methods for evaluating address structure, domain routing, mailbox observations, disposable providers, and the boundary between evidence and certainty.
Methods for evaluating address structure, domain routing, mailbox observations, disposable providers, and the boundary between evidence and certainty.
The two terms overlap, but separating address checks, mailbox evidence, ownership confirmation, and deliverability leads to better decisions.
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How temporary-address detection works, why provider lists are incomplete, and how to respond without blocking legitimate privacy choices.
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A step-by-step look at SMTP recipient checks, catch-all domains, temporary failures, and why a server response is evidence rather than a guarantee.
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A practical explanation of syntax, domain, mailbox, and risk checks—plus what a verification result can and cannot promise.
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