There is no server or password, but I get halted by this message whenever I
try to email,
whether office or coffee shop. so it's not a message from the network at my
office, for
example.

I tried turning off my firewall, which is the only thing my hoster's tech
support people could think of. It's a new computer and all my
inbound and outbound mail settings are apparently correct. They
think it must be an Outlook thing. Any ideas?