When I attach a file to send with e-mail, it won't finish. Our server has a limit on the size of the file you can send by mail which is 1 Megabyte in size. See if you can't send the attached file in several smaller pieces. It is possible that the DNS server that we currently use is temporality down. It should clear up after a few moments.
Internet is an ever changing venue.
It is possible that the pages you are trying to access are out of date and no longer exist. This means that you must get in contact with the people who run that page and get a password. This many times involves a fee, and it is up to you as to whether or not you pay that fee.