Can I get an indication from hotmail that an email that has been sent has been opened
I can't toggle between Outlook's windows. When I click the Windows menu item, there is no sub-menu item to toggle to the next window. I only see the names of the windows that are active with no keyboard shortcut beside them. When I use [command + tilde] I hear a bell ringing (clear indication that I've done something wrong) but the windows do not toggle. From what I've read, this should be a basic command. What am I missing?

FYI - I use keyboard shortcuts in other applications all the time. I have also tried every combination of command, function, option, control and shift along with TAB and tilde.
My inbox and dock icon are showing that I have 1 unread email...even though I have no emails (items) in my inbox.  My OSX is Mountain Lion.  I have no idea how to solve this problem.  Thanks
It appears, I sent too many emails.  So naturally you told me I was over the limit, but you forgot to tell me the limit.  and the link also did not give any indication of what tt is, or what ia going on. Thank you for making a draft of my email, very thoughtful, but do I get to know who got and who didn't get my email?
And etc.?