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    Strategy

    Preheader Text

    The line of text that appears next to or beneath the subject line in the inbox preview.

    The preheader is the most underused real estate in email. It typically pulls the first text from your email body, but every modern ESP lets you write it explicitly. Treat it as a second subject line: amplify, do not repeat. A great subject + preheader pair lifts open rates 5–15%.