The version of Exim which is the software that sends and receives email on servers has been updated to the latest version for security.
However please note in doing so causes port 25 to not work for sending email.
You will need to use Port 465 or 587 going foward preferablly with SSL
You can view more information on this issue on the Directadmin Release page:
https://docs.directadmin.com/changelog/version-1.659.html
