Public bug reported: When processing the subject_prefix for list mail, Mailman attempts to remove all the redundant Re: bits in the Subject. Under some circumstances this can fail resulting in messages being delivered to the list with subjects like, e.g., Subject: [prefix] Re: Re: Re: Re: some message subject Of course, it was a user's MUA that created a subject with multiple Re: to begin with, but it may not have been so blatant before prefixing manipulations. ** Affects: mailman Importance: Low Assignee: Mark Sapiro (msapiro) Status: New -- You received this bug notification because you are a member of Mailman Coders, which is subscribed to GNU Mailman. https://bugs.launchpad.net/bugs/1496620 Title: Mailman sometimes fails to remove redundant Re: when prefixing subject. To manage notifications about this bug go to: https://bugs.launchpad.net/mailman/+bug/1496620/+subscriptions