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?