I am trying to configure PrestaShop email, When I use Yandex SMTP then get the following error "Please check your configuration Expected response code 250 but got code "553", with message "553 5.7.1 Sender address rejected: not owned by auth user."
shopny.no. 1 IN MX 10 mx.yandex.net.
Anybody have an idea where Is the issue. It will be great if anyone helps me to solve this issue. Thanks in advance