Which ISPs deliver DMARC reports and what configuration is needed?

DMARC reporting is crucial for understanding how email is handled and for preventing spoofing. Major ISPs like Google, Yahoo, Microsoft (Outlook.com, Hotmail) and AOL generally provide these reports, sending them to the email address specified in the 'rua' tag of the DMARC record. Setting up DMARC involves creating a TXT record in your DNS settings, including 'v', 'p', and 'rua' tags with correct syntax. Tools exist to help generate accurate records. External Domain Verification (EDV) is necessary when sending reports to a different domain. The DMARC TXT record should be located at `_dmarc.yourdomain.com`. Continuous monitoring of reports helps maintain email security and improve deliverability. If reports are missing, check DNS configuration, ensure a valid 'rua' address, and remember smaller ISPs might not support DMARC reporting. A misconfigured DMARC record may cause it to be ignored by ISPs.

DMARC reports are crucial for monitoring email authentication and identifying potential spoofing. Major ISPs like Google, Yahoo, Microsoft (Outlook.com, Hotmail) and AOL typically provide these reports, which are sent to the address specified in the DMARC record's 'rua' tag. Proper DMARC configuration involves creating a TXT record in your DNS settings with correct syntax for 'v', 'p', and 'rua' tags. External Domain Verification (EDV) is needed when sending reports to a different domain. Continuous monitoring of reports is essential for maintaining email security. If reports are not received, check for DNS errors and valid reporting email address. Smaller ISPs might not provide DMARC reports. Use DMARC record generators to avoid syntax errors.

A misconfigured DMARC record can cause ISPs to ignore it. External domain verification is necessary for sending DMARC reports to different domains. The RUA field in the DMARC record designates where aggregate reports are sent, aiding email authentication monitoring and abuse identification. Ensuring the receiving domain is properly configured to accept these reports is crucial.

DMARC reporting, including aggregate (RUA) and forensic (RUF) reports, is critical for domain owners to understand how their email is handled and to enforce authentication policies. Setting up DMARC involves creating a DMARC TXT record in your DNS settings, specifying RUA and RUF tags, and ensuring correct syntax (using validators). The DMARC TXT record must reside at the `_dmarc` subdomain of your domain.