DMARC is a DNS entry published for your domain to tell ISPs (e.g., Yahoo, Gmail, Outlook.com, ProtonMail) where to send DMARC reports.
A DMARC report is simply a list of all the email that an ISP has received from your domain so that you can see if the messages are coming from you or if they are coming from spammers pretending to be you.
With this information you can lock down the places that you use to send email. The end goal is to tighten up the DMARC settings so that ISPs will reject any email that isn't sent from one of your white-listed email servers and third-party senders (e.g., Mailchimp, Gmail, ConstantContact, SendGrid, ZenDesk, Salesforce.com).
The DMARC report frequency can be adjusted by modifying your DNS settings. If the reports are not useful to you we can redirect them to another account.
We do not recommend removing the DMARC DNS entry because it improves your email deliverability and helps ISPs trust you.
We also do not recommend sending the reports to a non-existent email account because the messages will bounce back to the ISPs.
Instead of receiving the DMARC reports in your inbox you can redirect them to one of the services below and they will aggregate them and help you decipher them.
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