Case Study: Runna achieves 99% delivery rate with Bouncer

Runna cleans 10+ million emails and hits 99% delivery with Bouncer

Runna, a company that provides tailored running plans, needed to notify its entire user base about a privacy policy update via email. This high-volume send to older contacts risked damaging their sender reputation with a sudden rise in bounces. To mitigate this risk, they partnered with Bouncer for email verification.

Bouncer helped Runna clean its list by removing thousands of invalid emails before the major send. This solution protected their sender reputation and resulted in a 99% delivery rate for the campaign. Runna continues to use Bouncer for both batch verification and real-time email checks on its signup forms to maintain strong deliverability.

Runna