Hi,

 MailService.exe read/writes FileTypeBlacklists.json from %windir%\system32 as opposed to the Service directory. Since I run SmarterMail under a user that doesn't have access to %windir%\system32, I am unable to save changes in the administrative UI - when doing so, I get the following error:" Access to the path 'C:\Windows\system32\FileTypeBlacklists.json' is denied." Edit to add: this is on 16.3.6565.

 

Thanks,

 Elazar