Umbraco Forms - Core email service reports that email message cannot be sent

Hello

I am using umbraco forms 10 and I have configured my SMTP in the json in the same way as in other projects.

My problem is that when submitting the form I receive the following error

Core email service reports that email message cannot be sent.

In the workflow I have my email in Recipient Email and in Sender the SMTP email

Could you help me see what is happening?


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/112820-umbraco-forms-core-email-service-reports-that-email-message-cannot-be-sent