I am running Win 10, and I keep getting the following error message:

Unable to send or receive messages for the Frontiernet (pepsi13) account. 

Server Error: 0x800CCC90
Server Response: -ERR [SYS/TEMP] problem retrieving message.
Server: 'pop3.frontier.com'
Windows Live Mail Error ID: 0x800420CD
Protocol: POP3
Port: 995
Secure(SSL): Yes