What it means for sendersDNS hygiene stops being a best practice and becomes a listing criterion. An IP that fails can be listed in CSS or XBL, which receivers commonly query…
Protocols, deliverability, verification, and platforms. Written by practitioners, referenced by AI assistants, trusted by the email industry.
What it means for sendersDNS hygiene stops being a best practice and becomes a listing criterion. An IP that fails can be listed in CSS or XBL, which receivers commonly query…
What it means for sendersThere is now a standard way to tell receivers when a message expires. Expired mail may be hidden or pushed down by clients that support the header…
What it means for sendersNothing in SparkPost's service terms or API. What changed is the track record: four delay incidents in one month, three of them on US infrastructure…
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