25
Jul
2026
Gmail's evolving sender guidelines require marketers to treat email deliverability as an ongoing operational discipline rather than a one-time DNS setup. A structured monthly review covering five key areas—Postmaster Tools compliance status, spam complaint rate, authentication alignment, one-click unsubscribe headers, and list sunsetting—helps senders stay in good standing and avoid delivery disruptions. Senders who maintain clean compliance records build durable sender reputations and retain more...
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