>>92565
@ameritech.net email addresses come with your DSL account (for proof, e.g. https:// forums.att.com/t5/U-verse-2013-Archive/Ameritech-Email-Address/td-p/2701765).
The key is the .net TLD. If it was a corporate-provided email, it would use .com TLD. A lot of broadband providers (comcast.net, sbcglobal.net, etc.) give you a .net email address with your account.
I think the Ameritech connection is a dead-end. It's an ISP-provided email address. There are many like it. This one is BO's.