Sign in and Edit DNS Records
Sign in to your Cloudflare account and select the domain you want to update
Select the DNS section from the top menu
Click the '+Add record' button
DMARC
Create a record with:
-- Type: NS
-- Name: _dmarc
-- Nameserver: ns.vali.email
-- TTL: 10 min (You can pick another Time To Live value, but we recommend 10 minutes
2. Click 'Save'
3. Delete any other “_dmarc” TXT records that exist on your domain.
DKIM
Just as you've created an NS record for the _dmarc subdomain, now you will need to create a similar one for the _domainkey subdomain.
Create another record as before with the following values.
-- Type: NS
-- Name: _domainkey
-- Nameserver: ns.vali.email
-- TTL of 1hr
SPF
To delegate SPF to Valimail for email authentication, you'll need to add a TXT record that includes Valimail's SPF macro.
If you have an existing record that addresses SPF, backup and remove it.
1.Create another record as before with the following values.
-- Type: TXT
-- Name: yourdomainname.com
-- TTL: 10 min
-- Under Content, add: v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email
Read more about Valimail's SPF solution.