How do triggers influence ISP trust scoring?

Triggered emails influence ISP trust scoring through several mechanisms:

Engagement signals:

Triggered emails typically generate higher open and click rates. Positive engagement signals indicate wanted mail. Consistent positive signals build sender trust over time.

Complaint patterns:

Well-triggered emails matching expectations generate fewer complaints. Poorly timed or excessive triggers increase complaint rates. Complaint patterns heavily influence ISP trust.

Sending consistency:

Steady trigger volume creates predictable patterns ISPs can evaluate. Erratic volumes from poorly managed triggers create uncertainty.

Content relevance indicators:

Recipients who engage immediately after receiving suggest relevance. Quick deletion without engagement suggests unwanted mail. ISPs observe these patterns at scale.

Infrastructure signals:

Separating transactional and marketing automation allows ISPs to evaluate each stream appropriately. Mixed purposes in single streams confuse trust signals.

ISPs learn from recipient behavior. Triggers that serve recipients well generate signals that serve sender reputation well.