This is what they sent me.
I have been paying Demon for ages for a dial up account, the agreement was if I did that I could keep the email.
I got this with 7 days warning.
To ensure that you benefit from the best email service possible we are upgrading the email platform on which you may have services. If you wish to continue using these services, you will need to contact us to create a billing package.
Currently you are not being billed for any email packages so if you do not wish to retain your services, no action is required.
In April 2015 your Demon Email services were assigned to us and as such the following domain name has remained active as an Exchange Email account:
We will be suspending the primary domain above and any other associated domains from the Exchange Email platform on Tuesday 31st January 2017. After this time, any legacy email services associated with this platform will no longer work.
How do I retain my email services?
You may not have purchased a package or your package may since have lapsed, meaning we have no record for the domain above or any other domains associated with it within our systems. For this reason, if you wish to continue you will need to purchase an Office 365 product by registering at www.mydemon.email and choosing the right Office 365 package for you. This dedicated registration page enables us to set up Demon email addresses on Office 365 quickly and efficiently.