I found a solution.
I believe that Bell Aliant has turned off SMTP connections to the mail server from older devices.
After finding an old listing in the group, I set up an extra Google Gmail account just for ISY994 use.
I activated the 2 step verification successfully, but I could not find the "APP Passwords"
It turns out that Google has moved or hidden it. It is now at https://myaccount.google.com/apppasswords
You have to jump through a few hoops, but once you get that magic code it works great!
The very useful wiki info can be found here;
https://wiki.universal-devices.com/ISY994:Configure_Mail_Server_Settings#Configuring_gmail_Account
