v=DMARC1; p=none; fo=1; rua=mailto:me@example.com

Here’s what this rule does:

• This DMARC example tells the server to send a report by email if SPF or DKIM fail the server’s checks.
• We’re using p=none because it’s the least restrictive setting. You’ll still get email reports if there’s an issue with your DNS, but it’s unlikely to affect your own emails from being delivered. If you start to get suspicious DMARC reports, you could change this part of the rule to p=quarantine.
• Be sure to change the mailto: address. It should ideally be set to the email address that your mailer service provides in its documentation. If it doesn’t provide one, you can use an email address at your own domain.

Here’s what our DMARC record looks like. We recommend leaving the TTL setting on Auto. If you have to choose a value, it’s best to keep the TTL short – in other words, hours rather than days.

Sender Policy Framework(SPF)는 이메일 스푸핑 방지를 위해 마련된 이메일 검증 표준입니다. 

기존 SPF 레코드가 없는 경우, 다음 값의 TXT 레코드를 게시합니다. 레코드의 이름은 DNS 서비스에 따라 공백이거나 @일 수 있습니다.

"v=spf1 include:amazonses.com ~all"

SPF 레코드는 여러 include 설명을 포함할 수 있습니다. 도메인에 이미 SPF 레코드가 있는 경우include문을 다음과 같은 형식으로 사용할 수 있습니다.

"v=spf1 include:example.com include:amazonses.com ~all"