Victor Duchovni a écrit : > On Thu, Jun 24, 2010 at 12:20:23AM +0200, mouss wrote: > >> This mail is coming from postini. if you use postini, there's nothing >> you can do with the envelope (and even if you do content filtering, you >> shouldn't reject mail. it's too late). > > Postini implement an SMTP proxy, not a store-and-forward relay,
is that always true? don't they queue mail if the destination site responds with a 4xx? > so rejecting mail is still OK, but client IP checks are not very > useful, checks based on the envelope sender domain, ... may > still be useful in some cases. >
