There are a variety of ways to get recipes in your email from CDKitchen. 

We have a daily "update" that you can subscribe to.  It contains links to the newest recipes added to CDKitchen and any special announcements.   It is sent out every day of the week.   You can sign up for it by clicking here

If you don't need to know what new recipes are posted every day, but would rather have a weekly reminder, we have another email that goes out on Thursdays you can sign up for here

If you would like to be part of an email exchange - where you can interact with other cooking fanatics, receive (and share) all kinds of recipes and cooking information - and just meet some great people, you can sign up for our interactive cooking group.  Messages are posted to a single email address and distributed to everyone subscribed to the list.   You can find out more about that here

If you are a hard-core recipe collector then we highly recommend joining the rec.food.recipes list.  This list originates from USENET and we offer an email portal to it.  Just subscribe and let the recipes roll in.  Usually about 20 per day.  No chit chat, just recipes.  Make sure to read the info about the list before posting however.