On Wed, 2004-10-13 at 19:30, Jonathan Allen wrote: > OK - moving forward with setting up this system, I've hit another wall. > I have defined a smart-host for sendmail, either by name or IP - it doesn't > seem to make any difference. I can use nslookup to correctly lookup the > smarthost, but sendmail shows all the messages as deferred due to host > lookup failure. What is the exact line you have used in your sendmail.mc to define the smart host? What is the output of grep ^DS /etc/mail/sendmail.cf Paul. -- Paul Howarth <paul@xxxxxxxxxxxx>