Update: Here’s a better list. One good thing about Matt’s troubles with his mom’s Qwest account is he was able to collect and test various email addresses for their executives. Here’s his list of the ones that work and the ones that don’t.
firstname.lastname@example.org – Executive Vice President, Corporate Strategy
email@example.com – Executive Vice President, Chief Administrative Officer
firstname.lastname@example.org – Chief Financial Officer, Executive Vice President
email@example.com – Chairman of the Board, Chief Executive Officer
firstname.lastname@example.org – Executive Vice President, General Counsel and Corporate Secretary
email@example.com – Vice President, Chief Accounting Officer, Controller
firstname.lastname@example.org – Found a press release referring to him, I believe he’s on the Board.