I changed the domain, I imported the database and files from the old site to the new one, I set the smpt parameters and I'm sure they are correct, but when I start email test, the email is sent to the email address of the old site even though I set email of the new site.
example email from the old site was [email protected] instead new email [email protected], but always send to [email protected], if I access the email address [email protected] there is no email, but if I access [email protected] I see a test email. However, the mittette is correct

Then you have "from" mail incorrectly defined in mail server settings or you have some redirect.