I am using Fastmail for my email for garyrobinson.net. Fastmail gives a Selector value for CNAME records; Netlify DNS has no way to input it. What do I do?
The Selector for the first CNAME record Fastmail tells me to use is fm1._domainkey. But it looks like Netlify gives me no way to enter that information.
Similarly, Fastmail tells me to create a TXT record with Selectot value “_dmarc.{mydomain.com}” and value “v=DMARC1; p=none;”.
These values are given at: https://www.fastmail.help/hc/en-us/articles/1500000280261-Setting-up-your-domain-MX-only.
Fastmail is telling me my DKIM records aren’t set up. I assume that’s because I have no Selector values in the relevant CNAME records. What do I do??