Hi. I found this article that perfectly describes the issue we are experiencing https://help.salesforce.com/s/articleView?id=000384839&type=1 When we create a lead in the website and an API is suppose to create a lead, it is assigned, but no email is firing. When I recreate the criteria in the UI, it does. However, reading the article, I do not know where to go to address the issue. I have checked all the other things: DKIM, Deliverability, etc. so I am fairly confident it is the issue that the article descibes.
hi @Ad Acree,
The article you shared says that it's only applicable for SOAP.
Try creating some custom email notifications to work around this.