New rules regarding electronic communications for all Limited companies
Limited companies in the UK must include certain regulatory information on their websites and in their e-mails from 1 January this year or risk breaching the Companies Act 1985. Every company now has to list its registration number, place of registration and registered office address in legible characters on its website. The information must also appear in e-mails and online order forms. This data is already required on business letters but the duty has been extended to websites, order forms and electronic documents by an amendment to the law.  Legal news service Out-Law has published a brief guide to the new rules at: http://www.out-law.com/page-7594
To avoid being caught out, why not create a signature for your outgoing e-mails? This will add the required information to every e-mail without any need for you to remember or do anything.
Create an e-mail signature in MS Outlook. I know not everyone uses Outlook, but it is the most popular e-mail client. If you use a different e-mail client it should be quite easy to find instructions on how to create a signature from the provider or via a Google search.

1.                      In Microsoft Outlook, on the Tools menu, click Options, and then click the Mail Format tab.

2.                       Click Signatures, and then click New or Edit (if you have an existing signature that you can just update).

If you are creating a new signature follow steps 3 to 5, if you are editing an existing signature follow steps 4 to 5 only
3.                       In the Create new signature box, type a name for your signature and select Start with a blank signature

4.                       Under edit signature, insert the text or pictures, or both, that you want to use for a signature. Use the formatting tools to apply formatting to your text.

5.                       Click Finish/OK.
6.                       In Options select the signature you have just created for signatures for new messages and signatures for replies and forwards.

7.                       You can have multiple signatures if you wish. Follow the steps above, but choose a different name for each signature.

I hope this proves to be of help

Wayne