DMARC has no aggregate reporting address
The DMARC record on `your domain` has no `rua=` tag, so receivers that support DMARC reporting have nowhere to send their daily aggregate reports.
Why it matters
The DMARC record on `your domain` has no `rua=` tag, so receivers that support DMARC reporting have nowhere to send their daily aggregate reports. Those reports are the only way to see which servers send mail as your domain, catch a legitimate sender that is about to be broken by a stricter policy, and confirm forged mail is actually being rejected rather than assuming it. Without them you are enforcing (or monitoring) blind.
How ShipReady detects it
Email-authentication DNS records (DMARC / SPF). Almost every AI-built SaaS sends transactional email — password resets, magic links, receipts — through Resend, SendGrid or Postmark. Setting that up gets the mail delivered; it does not stop anyone else sending mail that claims to come from the same domain. Without a DMARC policy, a receiving server has no instruction to reject a forgery, so an attacker can send "reset your password" from the product's own domain and the message will land in the inbox looking authentic. This check is almost entirely DNS rather than HTTP — one exception is MTA-STS, whose policy is only half-published in DNS; the other half is a file fetched over HTTPS (see _check_mta_sts). Nearly everything else here is the most deterministic kind of check the scanner has: a record either exists or it does not, so there is no heuristic and no false-positive surface. The one place judgement is required is deciding WHICH domain to ask about — see _organizational_domain.
Detection is deterministic. ShipReady reports this only when it observes the condition directly, and prefers to miss a real problem over inventing one. Rule version 1.10.0.
How to fix it
This is the prompt ShipReady puts in your report — written to be pasted straight into Cursor, Claude Code, or whichever assistant built the app.
The DMARC record on your domain has no rua= tag, so you never receive the aggregate reports mailbox providers send about mail claiming to be from your domain. Add "rua=mailto:dmarc-reports@your domain" (create that mailbox, or use a free aggregator like Postmark's or dmarcian's report parser if you don't want to read raw XML) to the record. Do this before tightening or keeping a p=quarantine/p=reject policy — without it you cannot tell whether a legitimate sender is about to be silently rejected.
Frequently asked questions
- What does "DMARC has no aggregate reporting address" mean?
- The DMARC record on `your domain` has no `rua=` tag, so receivers that support DMARC reporting have nowhere to send their daily aggregate reports.
- How serious is it?
- ShipReady rates this low. Worth fixing. Small individually, and they accumulate.
- How do I fix it?
- Paste the fix prompt on this page into Cursor, Claude Code or your AI editor. It is the same prompt ShipReady puts in your report.
- Can I check my own site?
- Yes — ShipReady scans up to ten pages of any public site for free and reports this alongside every other check. The free report lists every issue it finds and shows full evidence and a fix prompt for the critical and high-severity ones; medium and low findings are counted and unlock on Pro.
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