We check this website, now exchangesoftware.info is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is exchangesoftware Down Right Now? - NO! exchangesoftware is up!
If you have problem with access to site exchangesoftware, and domain exchangesoftware.info is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).