Apology if this has already been discussed, but I do not see any mention of report looping between two mail systems. Here's what I observe:
1. Mail system S sends a message to mail system R. 2. Mail system R eventually sends a DMARC aggregate report back to mail system S (assuming that S's rua leads to itself, not a third party). 3. Mail system S eventually sends a DMARC aggregate report to mail system R (again, assuming R's rua leads to itself), including at least a record on the message of step 2. 4. Steps 2 and 3 repeat indefinitely. This loop may go unnoticed between high volume mail systems, but I have observed it on my own ultra-low-volume system. Is there a suggested way to abort the loop, other than preventing a DMARC report email from being reported on, which has its own drawbacks? -- _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
