The limits of UTMs
UTMs capture destination data, but they don't capture context. They struggle with forwarded emails, long-running threads, and repeated interactions that happen outside a single click. As a result, teams often miss how engagement builds over time through everyday communication.
Signatures as attribution anchors
Signature links persist across replies, forwards, and follow-ups, making them durable attribution anchors. Because they're always present, they give a clearer view of how people interact with content throughout a conversation — not just at the moment of send.
Seeing the full engagement picture
When signature activity is tracked centrally, attribution becomes more holistic. Teams can connect engagement patterns to campaigns, roles, and channels, gaining insight that UTMs alone can't provide.
Put this into practice
Apply these ideas centrally, measure what works, and update signatures without disruption.