Do you have .NET 4.5, and all of the service packs and security patches installed?
SmarterMail 14.X requires .NET 4.5 to run properly.
Did you have an earlier version of SmarterMail installed prior to installing 14.X?
If so, did you do a complete uninstall of tge old version and reboot, to unlock any locked files, prior to installing version 14.X?
Bruce Barnes
ChicagoNetTech Inc
brucecnt@comcast.net
Phonr: (773) 491-9019
Phone: (224) 444-0169
E-Mail and DNS Security Specialist
Network Security Specialist
Customer Service Portal: https://portal.chicagonettech.com
Website: https://www.ChicagoNetTech.com
Security Blog: http://networkbastion.blogspot.com/
Web and E-Mail Hosting, E-Mail Security and Consulting