Domain reputation

Domain reputation is the memory a mailbox provider keeps about your domain. Every message you send adds to it: did it authenticate, did it bounce, was it reported as spam, was it opened, was it deleted unread, was it replied to. Providers do not publish the formula, but the inputs are consistent, and the effect is direct: a domain in good standing lands in the inbox, a domain in poor standing is filtered or refused.

It matters because reputation is shared and slow. Shared, because every mailbox under a domain contributes to the same score, so one careless campaign from a sales address can put invoices from the accounts address into junk. Slow, because a good reputation takes weeks of steady, clean sending to build and only a few bad days to lose. This is why many teams run cold email from a separate domain that resembles the main one, protecting the address the whole company depends on.

The controllable inputs are the ones an outbound tool exposes. In Seegnals that means SPF, DKIM and DMARC status per domain in the Deliverability tab, a daily limit per mailbox, randomised sending gaps, verification on import and the bounce shield, so a bad list is stopped before it reaches the score.