We recently had a DKIM issue sending email and had to create a new selector, keys, etc. Now everything is fine except for one workflow, which is still flagged in the undelivered emails as a DKIM issue. Sender is "NetSuite Alerts (automailer@netsuite.com)". I can't imagine there would be any kind of DKIM specification within a workflow... what's the deal?

does same email email with same subject been send multiple times to different user?