I want to know if it is possible to remove the option to delete an email from the server unless you are either a server admin or a reseller. An alternative would be to forward all deleted mail to a separate inbox if that would be possible?
Hello 
There are no native features that will prevent authenticated users from deleting individual emails. Have you considered using the "Email Archiving" feature? It's documented here:
Email Archiving
Thank you.
There are no native features that will prevent authenticated users from deleting individual emails. Have you considered using the "Email Archiving" feature? It's documented here:
Email Archiving
Thank you.