You may need to take note of a recent update to the UK Companies Act of 1985 (http://www.theregister.co.uk/2006/12/21/new_web_email_regulation/).

The law was amended to extend the disclosure requirements already existing for paper business letters and order forms. It now applies to online versions of business letters and order forms.

This means that as of 1^st January 2007, companies incorporated in Great Britain and those overseas companies that operate in Great Britain must include the following in business letters and order forms:

-          the company's name;

-          the company's place of registration;

-          the company's registration number (if one exists); and

-          the address of the company's registered office.

Based on research by ExactTarget, and guidance provided by industry groups, it seems likely that “business letters” are limited to transactional-type messages, and that email marketing messages and newsletters are not considered business letters.

Email "publications" and "notices” (likely including email marketing and newsletters) do have to contain the company’s name.

So, for transactional email messages, it is required that you immediately include all of the new business letter disclosures described above. For other commercial messages, make sure you include the name of the sender, valid postal address, and so forth, like most senders have already been doing to comply with best practice, EU Directive, CAN-SPAM law.