DMARC is an acronym : Domain-based Message Authentication, Reporting & Conformance
DMARC records are added to the DNS of your domain(s) as TXT records.
They can help improve email deliverability for your domain(s) and some receivers (gmail, yahoo) require them if you send a lot of email to their users.
A DMARC record means you will get emailed reports of emails that failed the DMARC check from your domain, and this address is publicly visible, so we recommend using a different email address to your main address to send the reports to. For example something like email@example.com and then check this mailbox specifically for the reports (or set it to forward to your main address, but bear in mind this could result in a lot of new emails)
Generating a DMARC record
To help generate the DMARC record there are a number of online tools available for guiding you through creating and validating them. See here for a list.
Here is a sample DMARC that won't reject emails, only report on potential fails, and email the reports to firstname.lastname@example.org:
v=DMARC1; p=none; rua=mailto:email@example.com; ruf=mailto:firstname.lastname@example.org; fo=1
Adding a DMARC record
If your domain is using Blacknight's nameservers then you can add a DMARC record under:
- cp.blacknighthosting.com > Domains > Manage DNS > click the pencil icon beside the domain in question
- click Add Record > Pick the TXT type
- Put _dmarc in the Name field and the dmarc record you want to use in the TXT data field
If you don't see your domain in Manage DNS under cp.blacknighthosting.com then it might not be transferred to the new panel yet. Please see here for how to change the DNS records on the legacy panel: Change DNS
If you run into issues please contact our support team