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267865Re: Separate Submission Instance on Same IP as MX

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  • Mike Morris
    Aug 1, 2010
      On 08/01/2010 02:37 AM, Jeroen Geilman wrote:
      > On 08/01/2010 04:11 AM, Mike Morris wrote:
      >> Hi,
      >> I'm working on a mail server deployment that will only have one server
      >> for MX and SASL submission purposes. Generally I like to have separate
      >> Postfix instances to handle a specific task.
      > Why ?
      > It's totally useless in this case.
      > SMTP runs on port 25, and rejects anything not_invented_here.
      > Submission runs on port 587, and requires SASL.
      > Simple.

      I don't believe it is "totally useless" to use separate instances for
      distinct services. Configurations can get complex. Outgoing mail may
      be handled differently than incoming mail. Using multiple instances can
      simplify the task. While it may not *work* in this case, using multiple
      instances for MX and submission services is far from *useless*.

      >> mail_version = 2.8-20100707
      > UNSTABLE.
      > sheesh.

      Plenty of people would argue that Postfix experimental releases are
      quite stable. In this case I would like to test and make use of postscreen.
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