I've been noticing lately that occasionally someone will have an e-mail problem during the design process. To help with the issues no e-mail can cause I've created a "Client Forum".
Once a customer has picked their design and pays they go to the forum and sign up. I think make them their own dedicated forum and we work directly from there. Since we both can post pictures, etc. I am able to share all previews of their design.
I hope this works out as well as I think it will!
The link is under "Client Login" (right under the blog link)
http://www.wahmshoppestemplates.com/community/