How does this apply to your email database?
• make sure that you have an “opt out” or “unsubscribe” option on all commercial
emails. most email service providers will offer this facility. the service provider
will store your database and will update it automatically when people opt out
or in (see section 7 for more on email marketing service providers).
• You need to be able to identify the source of every contact in your database,
meaning where you found the consumer’s email address.