If I have my own domain as my permanent address, does my sign-up address have to be "admin" or "webmaster"? Those particular addresses have proven to be spam bait and I currently redirect them to trash. My domain is of the form firstnamelastname.com and my e-mail address is firstname.lastname@example.org. Is that sufficient to prove that I am not masquerading as someone else? Or does the rule serve some other purpose?
Just keep in mind that this is basically only needed once, and that's to get your initial password and general info. After that, you can enter an e-mail address you'd prefer to use and then not need to worry about the admin/webmaster e-mail address.
I'm in and things are working, but, if you have an admin or webmaster account, you're probably aware that this is a standard target for spammers whether or not it has ever been mentioned anywhere in the webiverse. I've killed the admin account and I don't care any more... Just thought I would mention it.
As has already been mentioned, this account is only needed to initially retrieve your password. You can then set up a contact address (which can be a free e-mail account) and don't ever need to access the webmaster/admin account again, so this shouldn't be a problem.