I’m starting brand new domain and in trying to purchase it from you it says YES ITS AVAILABLE … I WANT IT TO BE QPP-BOARD.COM. AND IT SAYS AVAILABLE AND WHEN I GO TO BUY IT CHANGES IT TO qpp-board.com… all lower case ….
You have a discrepancy between the name you are typing, qpp-board.com, and the one in your screenshot, qppresidenceboard.com. For the sake of explanation, let’s ignore that for the moment, as it will not change the answer about uppercase versus lowercase.
There is no such thing as a case-sensitive domain name registration. The names qpp-board.com, QpP-boArd.cOm, QPP-BOARD.COM, and Qpp-Board.com are all the same domain name. If you want that name, you will need to overcome your misunderstanding on capitalization in the domain name registration process. Failure to do so will result in you not being able to register that name.
The name that appears in the recipient’s email inbox usually comes from the From field which is contained in the email message and set by your email program. I say usually only because the recipient could configure their email program to show some other value, usually set through their address book. (For example if you wanted email from you mother’s address to always display as “Mom”, you might be able to set that in some email apps.) Normally, though, the recipient will see the name exactly as you configure it. This means it should appear as QPP-Board.com if that is what you have entered in your email software.