Is there something up with mail.us.opalstack.com?
Attempting to use webmail returns errors "Server Error: Unable to connect to mail.us.opalstack.com: No route to host".
Imap2script also reports it:
2021/03/24 06:46:19 [WARN ] (id=0) Restarting execution
2021/03/24 06:46:22 [ERROR] (id=0) Error connecting to mail.us.opalstack.com:993: dial tcp 209.58.146.193:993: connect: no route to host