What we have seen

Bad-address rates fell after the first round of cleanup.

These examples come from real automotive email campaigns, with the dealership names removed. They show what happened in those campaigns, not a promise of what will happen in yours.

Three anonymous dealership examples

The share of attempted emails that permanently failed.

The graph compares the hard-bounce rate on the first promotion with the rate on the second promotion after known dead addresses were removed.

Hard bounces onlyA hard bounce means the receiving system reported that the address could not accept mail permanently. Soft bounces and internal bounces are not counted here because they can be temporary and may be tried again.

First promotionSecond promotion after cleanup

Dealer A99.1% lower

6.71%

0.06%

Dealer B98.9% lower

9.15%

0.10%

Dealer C60.0% lower

4.09%

1.64%

0%2.5%5%7.5%10%

6.74% → 0.47%Combined hard-bounce rate across all three dealerships

93.1% fewerHard bounces per attempted email on the second promotion

Dealer A: 1,577 of 23,485 attempts, then 13 of 21,845. Dealer B: 1,257 of 13,739, then 12 of 12,463. Dealer C: 504 of 12,323, then 189 of 11,557. Attempt counts and audiences differed between sends. Results vary.

Every CRM is different

The first question is what your own customer list looks like.

A short conversation can tell us whether the three-promotion cleanup makes sense for your dealership and what you want the emails to support.

Request a 12-Minute Database Review