deactivated vs deleted account


New Email
I know that a gmail account I've deleted will bounce back an error message if you try to send an email to it. But when I sent an email to a gmail account that I believe is only inactive/deactive, I didn't get this error message returned but appeared as if the email went through.

I tried to log into the email account and it kept saying the password/username was wrong (I know both); so, can anybody explain or elaborate please? Thank you