[Mailman-Users] bounces SMTP error 554

Sun Apr 23 00:08:42 EDT 2017

I do have control over gandalf - a VPS server (so that much, at least). Not
sure how I would obtain an "actual raw message" other than what I received
from the sender as a subscriber myself. The server uses Exim and is a
CPanel installation.

Seems like I get these bounces a couple a day and so far not often enough
increment to suspend the guys that these are bounced from.

thanks for your help!  /jim

On Sat, Apr 22, 2017 at 7:47 PM, Mark Sapiro <mark at msapiro.net> wrote:

> On 04/22/2017 07:30 PM, Jim Dory wrote:
> > I have a couple members of our list whose remote mail servers reject some
> > of our messages because of what appears to be text formatting in the
> > messages. Usually MS Office formatting. I get a bounce back ala:
> >
> > "host mtaonline.net.mx1.greymail.rcimx.net [208.80.206.74]
> >     SMTP error from remote mail server after end of data:
> >     554 Failed: Malformed MIME field: X-Ham-Report:
> >     Spam detection software, running on the system "
> > gandalf.nomekennelclub.com", has NOT identified this incoming email as
> > spam.  The original message has been attached to this so you can view it
> or
> > label similar future email.  If you have any questions, see
> root\@localhost
> > for details.  Content preview:
> >      blockquote, div.yahoo_quoted { margin-left: 0 !important;
> > border-left:1px #715FFA solid !important; padding-left:1ex !important;
> > background-color:white    !important; } 3 topping 19 inch pizza$20.00 2
> > chicken fajitas and a sala [0xC2] ..."
>
>
> It looks to me that the issue causing the bounce is not the content of
> the message body, but rather it is that spam detection software running
> in some MTA in the delivery chain is adding the headers something like
>
> X-Ham-Report: Spam detection software, running on the system
>  "gandalf.nomekennelclub.com", has NOT identified this incoming email as
>  spam.  The original message has been attached to this so you can view
>  it or label similar future email.  If you have any questions, see
>  root\@localhost for details.
> Content preview: blockquote, div.yahoo_quoted { margin-left: 0
>  !important; border-left:1px #715FFA solid !important; padding-left:1ex
>  !important; background-color:white    !important; } 3 topping 19 inch
>  pizza$20.00 2 chicken fajitas and a sala [0xC2] ..."
>
> to the message and the added headers are either non-compliant because
> they are too long or not properly folded or contain non-ascii characters.
>
> It may be that whatever doing this is rendering the HTML body for the
> Content preview: and turning the   html entities into utf-8 0xC2
> 0xA0 which is the two-byte utf-8 representation of the "no break space",
> but if it is putting those bytes (represented perhaps as "[0xC2] ...")
> into a Content preview: header, that is definitely a problem and
> something at gandalf.nomekennelclub.com is not doing the right thing.
>
>
> > In googling, it seems I found others have problems with the [OxC2] type
> > formatting as well. Just curious if there's much I can do about it or
> just
> > ignore these bounces.
>
>
> If you don't control gandalf.nomekennelclub.com, there's probably not
> much you can do beyond ignoring the bounces if they're infrequent enough
> that user's delivery isn't being disabled (or raise
> bounce_score_threshold if necessary)
>
>
> > Here's the original source of that particular message:
> >
> > Sent from My iPhone
> > 7=C2=A0 ------=_Part_2280092_117074804.1492908307810 Content-Type:
>
>
> It's hard to tell a lot from this without seeing the actual raw message
> without it's being wrapped, folded, whatever by your MUA. Note that the
> initial "7=C2=A0 " part looks like a quoted-printable encoding,
> presumably from the text/plain alternative part that corresponds to the
> "7 </div> " at the end of the html alternative part below.
>
>
> > text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit <html xmlns="
> > http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml"
> > xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso
> > 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96<
> /o:PixelsPerInch></o:OfficeDocumentSettings></xml><
> ![endif]--></head><body>
> > <style type="text/css" scoped> blockquote, div.yahoo_quoted {
> margin-left:
> > 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex
> > !important; background-color:white !important; } </style>3 topping 19
> inch
> > pizza<div>$20.00</div><div><br></div><div>2 chicken fajitas and a
> > salad </div><div>$12.00</div><div><br></div><div>Bacon cheese
> > burger </div><div>$10.00</div><div><br></div><div>Nome
> > Nachos </div><div>$12.00</div><div><br></div><div>443-
> 7992<br><br><br>Sent
> > from My iPhone 7 </div> </body></html>
> > ------=_Part_2280092_117074804.1492908307810--
> > --===============6170515499548786613== Content-Type: text/plain;
> > charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit
> > Content-Disposition: inline
>
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
> ------------------------------------------------------
> Mailman-Users mailing list Mailman-Users at python.org
> https://mail.python.org/mailman/listinfo/mailman-users
> Mailman FAQ: http://wiki.list.org/x/AgA3
> Security Policy: http://wiki.list.org/x/QIA9
> Searchable Archives: http://www.mail-archive.com/
> mailman-users%40python.org/
> Unsubscribe: https://mail.python.org/mailman/options/mailman-users/
> james%40dorydesign.com
>