Re: 421 4.3.0 deliver: Trying to unput wrong character

"Mikhail T." <mi+cyrus@xxxxxxxxxxxxxxxxx> · Mon, 24 Jul 2017 12:55:19 -0400



    On 24.07.2017 12:34, Merlin Hartley
      wrote:

    
      In my Exim configuration I have some code which
        strips the NUL characters from externally received messages and
        prohibits my local users from submitting messages which contain
        them - you could probably come-up with a similar thing for
        sendmail.
      This may be useful: http://info-cyrus.andrew.cmu.narkive.com/Rro4Nn9M/554-message-contains-nul-characters
    
    The link talks about stripping the offending character -- which
    would break the content in some cases (including mine).

    
    Maybe, it is time deliver is modified to do the right
    thing -- and re-encode if it really has to? Or, perhaps, imapd can
    do the re-encoding on the fly so that the images on the disk can
    keep these characters the way /var/mail/mboxes can?

    -mi

    
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