Do you plan to support DMARC soon? We have set our domain to quarantine 100% but it doesn't pass DMARC.

Recurly does not have any plans to support DMARC, but you can work around this by doing the following:

1. Creates a subdomain on your existing domain that will be used specifically for Recurly emails, such as billing@accounts.somename.com. This email would be included in the From email setting of the email templates.
2. Within the DNS configuration of your new subdomain, create a DMARC policy record that includes the attribute p=none. That policy will neither set a Quarantine or Reject policy action in the email header and the email would be routed to the end-user recipient's email server.
3. The end-user would then need to set their email account spam filter to permit emails from billing@accounts.somename.com.
4. Once the email arrives at the end-user's email server, their Spam filtering configuration will permit the email (from sender:billing@accounts.somename.com), to ultimately be delivered successfully into the end-user's inbox.

NOTE: Do not use recurly in the subdomain of the contact emails under Configuration - Site Settings -  Advanced Settings - Email Settings. (For example, billing@recurly.mydomain.com is not acceptable, but billing@accounts.mydomain.com is.)