The email contains:
My Title + Surname My Postcode and House Number My Account/Council Tax Reference Number My Account key for logging in on-line
A link to the their site and of course my email address.
Armed with that information I can login, change my email address, switch to paperless billing and see a summary of my details.
Seeing as Council tax is a key element in identity proof am I being paranoid that the council have not followed best practice, and if they haven't is there a good reference I can use if I point this out to them?