What is “inbox testing at scale”?

Inbox testing at scale means comprehensive, statistically meaningful testing:

Large seed networks: Hundreds or thousands of test accounts, not just a handful.

Provider diversity: Coverage across all providers relevant to your audience.

Regional coverage: Seeds in different geographic locations if your audience is global.

Continuous monitoring: Regular testing, not just occasional spot checks.

Scale provides statistical confidence. A few seeds can give misleading results due to variation.

Enterprise-grade testing services provide this scale. DIY is possible but resource-intensive.

A few observers give impressions. A network of observers provides intelligence.