Re: PHPMailer from and mesg-id bug

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Message-ID	<1632139.qOB4O6SjbM@PointedEars.de> (permalink)
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <php@PointedEars.de>
Organization	PointedEars Software (PES)
Date	Sun, 14 Jul 2013 10:50:59 +0200
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Subject	Re: PHPMailer from and mesg-id bug
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Rob van der Putten wrote:

> Thomas 'PointedEars' Lahn wrote:
>> Unlikely.  As the message is UCE (which by contrast to spam *is* an
>> abbreviation), and its content is probably even fraud, it is more likely
>> that this is an intentional misuse of PHPMailer, or a misconfiguration of
>> the MTA used by it, in a clumsy attempt to prevent the spam message from
>> being recognized as coming from a suspicious host.  The underlying
>> assumption would be that you do not filter out your own e-mails.
> 
> Which would be on the basis of source IP address, not content from or
> mesg-id.

There could be a rule with your MTA not to reject messages with your From 
header field value or FQDN as used by your MTA as those could be deemed 
trustworthy.

> So there is no point in faking these.

Yes, there is.
 

PointedEars
-- 
var bugRiddenCrashPronePieceOfJunk = (
    navigator.userAgent.indexOf('MSIE 5') != -1
    && navigator.userAgent.indexOf('Mac') != -1
)  // Plone, register_function.js:16

Thread

PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-12 17:41 +0200
  Re: PHPMailer from and mesg-id bug Michael Vilain <vilain@NOspamcop.net> - 2013-07-12 09:13 -0700
    Re: PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-12 20:57 +0200
      Re: PHPMailer from and mesg-id bug The Natural Philosopher <tnp@invalid.invalid> - 2013-07-12 21:28 +0100
        Re: PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-14 10:21 +0200
      Re: PHPMailer from and mesg-id bug Jerry Stuckle <jstucklex@attglobal.net> - 2013-07-12 17:06 -0400
      Re: PHPMailer from and mesg-id bug Christoph Michael Becker <cmbecker69@arcor.de> - 2013-07-13 00:21 +0200
        Re: PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-14 10:36 +0200
      Re: PHPMailer from and mesg-id bug Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-13 01:35 +0200
        Re: PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-14 10:18 +0200
          Re: PHPMailer from and mesg-id bug Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-14 10:50 +0200
            Re: PHPMailer from and mesg-id bug Rob van der Putten <rob@sput.nl> - 2013-07-14 11:46 +0200
              Re: PHPMailer from and mesg-id bug Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-07-14 11:54 +0200
      Re: PHPMailer from and mesg-id bug Twayne <nobody@spamcop.net> - 2013-07-13 19:53 -0400
  Re: PHPMailer from and mesg-id bug "Alex vdB" <alex@invalid> - 2013-07-14 11:47 +0200

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