DMARC mitigation can check an invalid domain if the From: local part contains a quoted '@'.

Bug #1568445 reported by Mark Sapiro
This bug affects 1 person
Affects Status Importance Assigned to Milestone
GNU Mailman
Mark Sapiro

Bug Description

A message with a From: address with an '@' in a quoted local part has been observed. While this is probably bogus, it confuses the DMARC mitigation code that splits off the domain at the first '@'. The code should probably split at the first '@' from the right.

Related branches

Mark Sapiro (msapiro)
Changed in mailman:
status: In Progress → Fix Committed
Mark Sapiro (msapiro)
Changed in mailman:
status: Fix Committed → Fix Released
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