Question

Why does my Outlook Express email account change the outgoing server to 127.0.0.1 every time I turn off my computer?

Answer 1

I don't know but the address 127.0.0.1 is a loopback address. Typically it's used to test to see if a network card is working but some people use host files to redirect themselves away from bad sites (like spyware sites - it works by keeping up a list of bad sites and matching them to the loopback address instead of their IP address).. . I guess it's possible that you have a program or a batch file or a firewall or anti virus file around that keeps changing your smtp server.

Answer 2

Your antivirus program may be changing that setting. Some antivirus programs use the localhost (IP address 127.0.0.1) to send mail, as a way to first inspect outgoing mail and to prevent worms from replicating themselves.