Sounds reasonable to me. If they have email, they usually have web as well.
I am considering no longer accepting requests by e-mail unless they state that they are having a problem with the form in their message. If they don't mention a problem, I would send them a message referring them to the web form. Does anyone have any objections to this? The reason behind this is that if they don't enter their info into the form, then I have to do it, and it takes time, which could be spent on other aspects of the system.
-- With best wishes From the lady of the changeable locks, soggy shazadi, duchess of darkness and damp, Barbara Reed, and all the furry friends. Dalie asks you to sponsor her in aid of the Brooke Hospital, you can visit at http://www.thebrooke.org She is walking from Nantes to Brest in 2005 and wants your money to help working animals in poor countries.