How do I get a DMARC record?

Infusionsoft support told me:
“your domain provider” could help with this.

And my web service responded:
“The DNS provider is Cloudflare but they do not write DMARC records for websites. What you need is a networking company, or just a networking guy who can look at the situation and write the appropriate DMARC record. If they provide this then I can update Cloudflare w/ that information.”

What do I do now? I guess I thought Infusionsoft was a networking company. Help?

What you’re looking for is to identify who your domain name is registered with (it wouldn’t be cloud flare). That’s where you put spf/dkim/dmarc records.