Sized first, built second.
Every delivery is accompanied by the criteria it was built from and the counts at each step, so the number can be checked rather than taken on trust.
Audience scoping
We turn a description of who you want to reach into criteria that can actually be counted.
Validation
Checking structure and reachability before a file is used, not after.
Sending identity
Separating what you send in volume from how your main domain is treated.
Send a file and we will report what share of it we can stand behind.