> > I just found out that I can't send email through kmail anymore. It says
> that the smtp host couldn't be found. I am an earthlink (formerly > using mail.mindspring.com for smtp. That worked until recently (the error).
> So, I checked the help pages on the web, and they want smtp.earthlink.net.
> also tried smtp.mindspring.com, mail.earthlink.net.
Can you ping any of them? I just tried to ping smtp.earthlink.net
and it worked fine (giving me an address of 207.217.120.207).
What does your /etc/resolv.conf say? Can you ping any other
hosts? (Basically, it sounds to me like your DNS setup is messed
up somehow)