How to verify if an email was received and read

I accidentally sent an email to a wrong email address. The owner told me that he didn't receive my email because there were no email servers configured for that domain. However when I did MX lookup, I found two mail servers for that domain, and several mail server testing tools also show that those two servers can receive incoming emails for that email address. In addition, that email never bounced back. Do these facts indicate that the owner was lying to me? How can I verify whether my email was received and read by him?

Do these facts indicate that the owner was lying to me?

No. The fact that an MX record exists for the domain and a that successful email address test do not confirm that the email was in fact delivered successfully.

How can I verify whether my email was received and read by him?

Unless you requested a delivery receipt and a read receipt and received a positive confirmation of both, you can't verify that your email was received and read.