Greg A. Woods wrote: > [ On Sunday, May 8, 2005 at 21:35:58 (+0200), John Fawcett wrote: ] >
>>I am very happy with postfix! > > > Apparently Postfix suffers a design flaw in that its internal dictionary > lookup API uses NUL-terminated strings so it is not possible for it to > easily use any regex pattern in header_checks or body_checks to match > NULs -- the regex engine simply won't ever see the NUL in a header or > body line passed to it to be matched, and instead it'll just see a > shorter NUL. (Note this is a bit more serious than one might suspect on > first glance since it probably means an embedded NUL can hide further > content on the line from header_checks and body_checks!) as I understand it's the nuls in the header/body checks which are not supported, not the presence of a nul in the message which prevents header/body checks being applied. > > However once upon a time not so long ago (2005/04/02), on the Postfix > users mailing list, Wietse Venema said: > > Postfix has an option to flag and reject 8-bit content in message > bodies that are announced as 7bit; this could be duplicated with > minor change to flag and reject nulls in body content. It's only > a dozen lines of code, and a dozen or lines of documentation. I > won't do it as I am working on other stuff. > > So apparently the proper fix should be quite easy to implement, and done > right a patch is likely to be accepted back by Wietse as well. > I am actually looking at this too, but that will benefit only postfix users not all users of cyrus. John --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
