Comment 2 for bug 1881035

Thank you for the report. I've never seen this (or maybe just never noticed it), but I accept that it happens. I suspect at some point Mailman may have received a message From: <email address hidden> and looked up _dmarc.AOL.com in DNS and a result is cached. This message may be properly mitigated because there was no case mismatch, but a subsequent message From: <email address hidden> gets the cached result and there is a case mismatch.

However, when I try `dig _dmarc.aol.com TXT` and `dig _dmarc.AOL.com TXT` multiple times in succession the case in the answer always matches the question, so that may not be the reason.