Email Found on Opt-Out List, why am I still receiving a complaint?
This is likely due to a scrubbing or cleansing issue that was performed by your Mailer. Unfortunately, we don't have a way to monitor how Mailers de-dupe their mailing list against your Suppression List outside of our system. We always recommend that your Mailers use our cleansing tool to help mitigate these types of potential issues.
To learn more about Complaints, please review this article: What is List Cleansing?
If you have further questions or need assistance, please contact us: support@optizmo.com