Who it is for
Email administrators and security staff managing authentication for one or more domains.
Overview
PowerDMARC moves email-authentication data into a chat session. Asking about a domain returns an interpreted reading of its SPF, DKIM, DMARC, BIMI, and MTA-STS configuration rather than raw record text.
Aggregate DMARC reports can be examined closely: which systems send mail under a domain, which of them fail authentication, and how volume divides by country and sending organization. Live DNS and WHOIS lookups are available, hosted-service configuration can be reviewed, and the app can produce correctly formatted SPF, DKIM, and DMARC records ready to publish.
Access runs through OAuth against an existing PowerDMARC account and is limited to what that account already permits. The app stores neither credentials nor tokens.
Email administrators and security staff managing authentication for one or more domains.
Aggregate reports are read back as findings about senders and failures, not just a pass or fail verdict.
Availability
PowerDMARC is listed in the ChatGPT apps directory only. PowerDMARC has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
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This is an independent catalogue entry compiled by Node8 from PowerDMARC's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with PowerDMARC, and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.