lorax - 3:28 pm on Nov 3, 2003 (gmt 0)

If the purpose of the email addresses is to provide users a way to contact each other you could use a simple contact form. I had a similar situation and did this.

I made a clickable link to a contact form and passed a var that represents the targeted user. I don't let the user fill in a 'To:' so the form is useless to anyone that might try to utilize it as an open emailer. When the form is submitted the form handler does a lookup using the var I passed for the actual email address. It formats the email and sends it on.