Paul, > What is the exact line you have used in your sendmail.mc to define the > smart host? define(`SMART_HOST',`83.104.103.142') or define(`SMART_HOST',`barumtrading.co.uk') > What is the output of > grep ^DS /etc/mail/sendmail.cf DS83.104.103.142 or DSbarumtrading.co.uk Just for what its worth: [root@mailgate mail]# nslookup > barumtrading.co.uk Server: 127.0.0.1 Address: 127.0.0.1#53 Name: barumtrading.co.uk Address: 83.104.103.142 Jonathan
