Compatibility With Amazon Ses?

Is CS-Cart not compatible with the Amazon SES SMTP server?

I have already registered my domain and verified it.

But I keep getting this error:

ErrorMessage could not be sent.
Mailer Error: SMTP Error: data not accepted.

I'm guessing it's either a port definition problem or a credentials problem.

Double check what the port should be and ensure you use [smtp_server]:[port_number] as the SMTP host.

I found the reason. The emails are sent "on behalf" of the emails that are set under company information. So they must be verified beforehand on Amazon SES.

I am having the same problem. Order emails send fine, but for other emails I get:

"Mailer Error: SMTP Error: data not accepted."

Our domain is confirmed, we're not in sandbox, and we know the credentials are working.

Any idea?