I have some troubles configuring SPF/DKIM for a VPS with a running instance of Postfix. Thanks to DMARC reports I'm finding and fixing always more issues.
Today I have a problem by setting SPF records in GoDaddy for a subdomain that matches the machine's name.
Given that domain is
mydomain.com and the host with mailserver is
On my GoDaddy DNS panel,
host.mydomain.com is a CNAME to
When I try to add a SPF record for the subdomain
@host.mydomain.com I get an error that there is already a
host CNAME record and I can't create a
host TXT record. The
@ record for
mydomain.com is up and running, and all DMARC reports are fine with that.
The question is: how can I tell GoDaddy to create a
host.mydomain.com TXT record on DNS?