I am wondering if anyone knows how to prevent Mail in OS X from automatically launching. I have several user accounts on my Mac, yet I want Mail to open in only one user account and in none of the others. I want to have all my e-mail in one user account and not spread across several user accounts. I removed the Mail icon from the dock in the appropriate accounts. However, earlier today while web browsing in one of my "non-Mail" user accounts, I clicked a link and it automatically launched Mail, which immediately started downloading all my e-mail. Yikes, not what I expected nor wanted. I had never launched Mail before in this account, how did it know my e-mail account information? How can I prevent Mail from launching in specific OS X user accounts? As a secondary question, when clicking a link that is an e-mail address on a webpage (not always obvious), is there any way to get a warning from Safari before launching Mail? Something like, "Do you really want to launch Mail?" I appreciate any help, hints, or tips. Thanks.