On Wed, Jan 14, 2015 at 11:37:22AM -0600, Chris Adams wrote: > Look at your results; you did not get that result in your dig. You got tahk you for your information, but the error message was created by a relay host located by my ISP. > failure while trying to resolve cchtml.com/MX. It works for me from > several locations on the Internet, so the problem would appear to be > with your DNS. I have retried to send the message without any success. But I have tried to maske an DNS query directly agins the Google DNS and have find out, that the hostname, which you have specified as a mail excahnge is a CNAME. But this is not allowed for MX records. MX records have to point to A reords instead of CNAME records. Best Regards: Jochen Schmitt Skript gestartet auf Mi 14 Jan 2015 18:42:28 CET ; <<>> DiG 9.9.6-P1-RedHat-9.9.6-6.P1.fc21 <<>> @8.8.8.8 mail.cchtml.com ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61595 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;mail.cchtml.com. IN A ;; ANSWER SECTION: mail.cchtml.com. 1720 IN CNAME cchtml.com. cchtml.com. 100 IN A 71.86.124.216 ;; Query time: 16 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Mi Jan 14 18:42:28 CET 2015 ;; MSG SIZE rcvd: 74 Skript beendet: Mi 14 Jan 2015 18:42:28 CET -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct