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Re: lots of lost connections

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  • Terry Barnum
    ... Thank you for the explanation. It s what I imagined to be the case, poorly written spam clients (well, poorly written from a good-is-correct pov, but
    Message 1 of 8 , Mar 30, 2010
      On Mar 30, 2010, at 3:05 PM, brian moore wrote:

      > On Tue, 30 Mar 2010 14:13:27 -0700
      > Terry Barnum <terry@...> wrote:
      >
      >> Other ideas why those clients didn't get rejected before DATA?
      >
      > ESMTP Pipelining?
      >
      > They could very well be rejected before DATA, except, well, with pipelining
      > they may have already started sending the message.
      >
      > (There are quite a few spam clients that use pipelining for the same reason
      > it was added.. it does speed up sending. Of course, spam clients also tend
      > to have horrible error detection and just close the socket when they get an
      > error, and sometimes just close it after sending the end-of-data marker without
      > even bothering to see the response... not like they care if the address is valid
      > or not.)

      Thank you for the explanation. It's what I imagined to be the case, poorly written spam clients (well, poorly written from a good-is-correct pov, but spammers would likely disagree with that definition.)

      -Terry
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