DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a DNS record that is used for mail services to apply policies to mail and where to report how those policies have been applied.
A simple DMARC record that covers most requirements would be:
v=DMARC1; p=none;
This basically applies no policies and no reporting to your domain's mail.
To apply a DMARC record to your domain, you would create a new TXT record via the DNS configuration page within your hosting control panel with the following values:
- Name: _dmarc
- Type: TXT
- TTL: 3600
- Value: v=DMARC1; p=none;
The reporting part of DMARC allows you to receive how mail is treated at different services. This helps, mainly, with detecting if the domain is being spoofed by spammers. Please contact us about DMARC reporting options. Without reporting, the simple DMARC record is all you should use.