Suppression list
A suppression list is a set of rules or records that exclude specific customers from receiving a direct mail piece. Suppression prevents over-mailing, protects customer experience, and avoids spending postage on recipients who shouldn't receive the send.
Types of suppression in TouchDrop
- Recently mailed — Customers who received a postcard within a configurable window (e.g. 30 days) are excluded from new campaigns to the same trigger type
- Already converted — If a customer converts from a trigger event before the postcard is printed, the postcard is suppressed. For example, an abandoned cart customer who completes their purchase within 24 hours won't receive the abandonment postcard.
- Invalid address — Addresses that fail Australia Post formatting validation, parcel lockers, and parcel collect locations are filtered out before the send
- Manual opt-out — Customers flagged as do-not-mail in your account are excluded from all campaigns
Why suppression matters for ROI
Every postcard that goes to the wrong recipient is a cost with no possible return. Suppressing converted customers prevents you from spending postage on a win-back offer to someone who just purchased. Suppressing recently-mailed customers prevents annoying repeat recipients and brand fatigue.
Good suppression logic reduces wasted spend and improves your effective ROAS by ensuring your postage budget is focused on recipients most likely to convert.
Suppression in TouchDrop
TouchDrop applies suppression automatically based on your campaign settings. You don't need to manage a manual exclusion list — the platform checks each potential recipient against all active suppression rules before adding them to the print queue.
Want to see these concepts in action?
Try TouchDrop free