Fox Mulder's email address would have ended after "fbi.gov"; adding the ".net" afterwards puts it into a commercial email address (perhaps on purpose to keep people from sending emails to that address at the FBI).
The email Mulder received from DARPA is shown with a source of "ftp server 19784.10693@Defense Advanced Research Projects Agency". FTP stands for File Transfer Protocol, it's not an email server. Also, there is no email address with that form of address after the "@" symbol (no .com/.net/.gov extension).
At 15:29 the car that Scully is driving is traveling on the wrong side of the road. This is not a one-way road; there is clearly a dividing line running the length of the road.