@rustyshackles I've been getting loads of undelivered emails. Some from workflows, some from scripts. I'd check Lists->Mailing->Undelivered Emails. If there are a lot of red flags you may need to change your DKIM settings. Although I already did, weeks ago, and I get the same issue.

Make sure you have activated the dkim I had a client configure and test but they left it inactive for some reason