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294983Re: Significantly different date observed in Received and Date fields

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  • Mike Seda
    Aug 25, 2013
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      It's possible to modify the Date field on MUA side, if one were so inclined, right?

      If so, how would that be accomplished?

      Mike


      On Sunday, August 25, 2013, LuKreme <kremels@...> wrote:
      >
      > On 25 Aug 2013, at 10:15 , Mike Seda <mike@...> wrote:
      >
      >> Receiving such emails makes it very hard to follow certain conversations.
      >>
      >> One such example looked like this...
      >> Received: Sat, 24 Aug 2013 18:16:40 -0700 (PDT)
      >> Date: Thu, 01 Aug 2013 17:52:46 +0200
      >>
      >> What would cause such a thing?
      >
      > Almost always it is the user's computer with a bad clock. Sometimes it is the user's computer intentionally set back because of some shareware software check. Very rarely it is their mailserver not getting messages out. Very very rarely.
      >
      > Long time ago I had a check in header_checks that looked for mail that was of the wrong year, but it rejected so little that I disabled it last time I forgot to deal with the end of the year correctly.
      >
      > The only thing I do in headers now is a mime_headers.pcre check, and even that rarely fires.
      >
      > In fact, it hasn't fired in the last 7 days.
      >
      > /^\s*Content-(Disposition|Type).*name\s*=\s*"?(.*\.(ade|adp|bas|bat|chm|cmd|com|cpl|crt|dll|exe|hlp|hta|inf|ins|isp|js|jse|lnk|mdb|mde|mdt|mdw|msc|msi|msp|mst|nws|ops|pcd|pif|prf|reg|scf|scr\??|sct|shb|shs|shm|swf|vb[esx]?|vxd|wsc|wsf|wsh))(\?=)?"?\s*(;|$)/x REJECT Attachment name "$2" may not end with ".$3"
      >
      > The last time that triggered was 30 Jul, which was before I installed 2.10
      >
      > Jul 30 08:11:23 mail postfix/cleanup[85134]: 70DB4118AE62: reject: header Content-Type: application/octet-stream; name="invoice9DK0GMQWRDMCRCP8LT.PDF.exe" from local; from=<no-replay@...>: 5.7.1 Attachment name "invoice9DK0GMQWRDMCRCP8LT.PDF.exe" may not end with ".exe"
      >
      > Frankly, postscreen does such a good job that many of the checks I used to do are now useless.
      >
      > --
      > Windle shook his head sadly. Five exclamation marks, the sure sign of an
      > insane mind. --Reaper Man
      >
      >
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