Allen, Jack wrote: <snip> > No, my ISP does not provide a hostname. > > Maybe I did not explain the problem clearly. I have a cable > modem connected to a router. The ISP provides an IP Address to the > router via DHCP. That would be on the WAN side of the router. On the LAN > side of the router I am using 10.11.12.X for my systems. The router is > 10.11.12.254 and my Linux system is 10.11.12.1 and the PCs are > 10.11.12.2 and 10.11.12.3 and the home automation device is 10.11.12.4 > and TIVO is 10.11.12.5. I have DNS (named) running on my Linux system > with the domain name of my_domain.network. The Linux system is setup to > relay email to the ISP. When the Linux system connects to the ISP mail > servers it tells it the connection is from linux.my_domain.network which > is validated and determined not to be a valid domain, which it is not. I > want the ISP mail server to see the connection form linux.my_domain.net > which is a valid registered domain. But using masquerading is not doing > that. Hmmm, is it complaining about the domain, or about the server's fully qualified name, and complaining the server's unknown? <snip> mark ===== It is complaining about the domain name, see my original post. It shows what that masquerading stated one domain, but the sendmail also send the real domain of the system based on the host name and this is what the ISP mail server validates. ----- Jack Allen -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list