Occasionally we have a client who is using a low-end web host or who is self-hosting and does not have a cgi-bin or scripting enabled in order for us to install a contact form processing script. Sometimes this has lead to expensive programming charges. We do not offer programming and so we have to contract out this portion of a project adding to expenses.
We have found a service that will process the script for you on their servers and so far it looks like a clean and elegant solution to a thorny problem for some clients. Our preferred site is MyContactForm.com. With a premium account for $24.99 per year, now any client can have a professional seamless contact form installed on their site without complex programming initiatives. I think that it is a very smart solution.
We have used this service on a number of client sites over the years and have had no issues in implementation or script processing. If you are in a similar situation, it is worth a look-see.