Domain reputation

Domain reputation attaches to the domains in your mail: the From: domain, the DKIM signing domain (d=), the envelope (Return-Path) domain and the domains of links in the body. Because authentication with SPF, DKIM and DMARC proves which domain stands behind a message, providers can track reputation per domain even when the mail moves between IP addresses or sending platforms.

A domain earns reputation through consistent volume, low complaints, low bounces and genuine engagement, and loses it through spam-like behaviour. Domains can also be listed on domain-based blocklists, which receivers check against sender domains and the domains of links.

Since domain reputation follows you across tools, switching sending platforms doesn't reset it. That's why many outbound teams send cold email from a separate, related domain (acme-mail.com rather than acme.com): a problem with outreach then doesn't hurt the main domain used for customer and billing email. New domains have no history, so they need warming up and careful list quality from day one.

Skrap.ai protects domain reputation from the list side: verify before you send so the domain isn't associated with bounces to nonexistent addresses. Use the free email verifier, bulk uploads or the API; Invalid and Unknown results are free.