FAQ
Has anyone run into issues with the Barracuda SPAM filter catching
emails sent through mailman 2.1.6 with the new Office 2007 format
documents attached? The email admin says Barracuda is seeing the
messages as containing a .zip attachment, not a .docx attachment. We
disabled the .zip filtering temporarily to work around the problem. The
email admin is contacting Barracuda to see if this is there problem, and
I thought I would ping here to see if others might be having the same
problem.



Thanks in advance for any help or light you can shed on this issue.



Jeff Whitcomb
Technology Services Manager
Member: Staff Advisory Council

Cumberland School of Law - Samford University
205-726-4662



P Think before you print

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  • Mark Sapiro at Mar 27, 2008 at 3:03 am

    Whitcomb, Jeff wrote:
    Has anyone run into issues with the Barracuda SPAM filter catching
    emails sent through mailman 2.1.6 with the new Office 2007 format
    documents attached? The email admin says Barracuda is seeing the
    messages as containing a .zip attachment, not a .docx attachment. We
    disabled the .zip filtering temporarily to work around the problem. The
    email admin is contacting Barracuda to see if this is there problem, and
    I thought I would ping here to see if others might be having the same
    problem.

    OT, but...

    docx files are zip archives containing a number of xml files, so
    Barracuda is recognizing the file by its content rather than by
    extension.

    Perhaps Barracuda would be willing/able to make their appliance perform
    a more in depth content analysis to determine if this zip file appears
    to be a docx or open document or Google Earth .kmz or other known file
    type which is in fact a zip archive of other files, but apparently
    they do not currently do this.

    --
    Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan
  • Brad Knowles at Mar 27, 2008 at 3:13 am

    On 3/26/08, Whitcomb, Jeff wrote:

    Has anyone run into issues with the Barracuda SPAM filter catching
    emails sent through mailman 2.1.6 with the new Office 2007 format
    documents attached? The email admin says Barracuda is seeing the
    messages as containing a .zip attachment, not a .docx attachment. We
    disabled the .zip filtering temporarily to work around the problem. The
    email admin is contacting Barracuda to see if this is there problem, and
    I thought I would ping here to see if others might be having the same
    problem.
    Note that .docx *IS* a ZIP file. See
    <http://channel9.msdn.com/ShowPost.aspx?PostIDs329>.

    --
    Brad Knowles <brad at shub-internet.org>
    LinkedIn Profile: <http://tinyurl.com/y8kpxu>
  • Whitcomb, Jeff at Mar 27, 2008 at 1:55 pm
    Mark,

    Thanks for the reply. I guess I forgot to mention that Barracuda is only catching the mail with the Office 2007 attachment if it was sent to a list for delivery. If I send an email directly to another person on campus, not using a list, then the message delivers fine.

    Jeff Whitcomb
    Technology Services Manager
    Member: Staff Advisory Council
    Cumberland School of Law - Samford University
    205-726-4662

    ? Think before you print

    -----Original Message-----
    From: mailman-users-bounces+jmwhitco=samford.edu at python.org [mailto:mailman-users-bounces+jmwhitco=samford.edu at python.org] On Behalf Of mailman-users-request at python.org
    Sent: Thursday, March 27, 2008 6:00 AM
    To: mailman-users at python.org
    Subject: Mailman-Users Digest, Vol 49, Issue 49

    Send Mailman-Users mailing list submissions to
    mailman-users at python.org

    To subscribe or unsubscribe via the World Wide Web, visit
    http://mail.python.org/mailman/listinfo/mailman-users
    or, via email, send a message with subject or body 'help' to
    mailman-users-request at python.org

    You can reach the person managing the list at
    mailman-users-owner at python.org

    When replying, please edit your Subject line so it is more specific
    than "Re: Contents of Mailman-Users digest..."


    Today's Topics:

    1. Re: how do I delete a pending subsc request for themailman
    list (Mark Sapiro)
    2. Re: Mailman 2.1.6 and Office 2007 documents (Mark Sapiro)
    3. Re: Mailman 2.1.6 and Office 2007 documents (Brad Knowles)
    4. Re: Mailman does not deliver messages any more (Mark Sapiro)


    ----------------------------------------------------------------------

    Message: 1
    Date: Wed, 26 Mar 2008 18:49:01 -0700
    From: Mark Sapiro <mark at msapiro.net>
    Subject: Re: [Mailman-Users] how do I delete a pending subsc request
    for themailman list
    To: Steve Lindemann <steve at marmot.org>, mailman-users at python.org
    Message-ID: <PC1760200803261849010875bb981f6c at msapiro>
    Content-Type: text/plain; charset=iso-8859-1

    Steve Lindemann wrote:
    The Mailman at marmot.org mailing list has 1 request(s) waiting for your
    consideration at:

    http://email.marmot.org/mailman/admindb/mailman
    <snip>
    Following the provided link doesn't take me to the usual login page,
    instead I end up on the generic listinfo page
    (email.marmot.org/mailman/listinfo).

    I can log into the list management interface for the mailman list, but
    when I click on the link to "Tend to pending moderator requests" I end
    up on the same general listinfo page instead.

    The underlying problem is in your web server config. Assuming apache,
    you probably have something like

    RedirectMatch /mailman[/]*$ /mailman/listinfo

    This needs to be anchored as in

    RedirectMatch ^/mailman[/]*$ /mailman/listinfo

    As a workaround, you can go to
    http://email.marmot.org/mailman/admindb/mailman/x which will work
    because the 'x' doesn't match in the redirect and it is igmored by the
    admindb cgi. I don't recall for sure if the subsequent post will work
    or have the same problem.

    I found the controlling file(s) in /var/mailman/lists/mailman...
    leastwise the members name and address are in the request.pck file. Can
    I simply delete request.pck (and/or request.db) to clear this? Is there
    anything else I need to do to clear the pending subscription? Thanks!

    Yes, you can just delete request.pck (request.db is left over from
    pre-2.1.5 and is not used).

    There may also have been a pending subscription in pending.pck, but
    it's probably expired by now.

    --
    Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan



    ------------------------------

    Message: 2
    Date: Wed, 26 Mar 2008 20:03:14 -0700
    From: Mark Sapiro <mark at msapiro.net>
    Subject: Re: [Mailman-Users] Mailman 2.1.6 and Office 2007 documents
    To: "Whitcomb, Jeff" <jmwhitco at samford.edu>,
    <mailman-users at python.org>
    Message-ID: <PC1760200803262003140406dcfc0304 at msapiro>
    Content-Type: text/plain; charset=iso-8859-1

    Whitcomb, Jeff wrote:
    Has anyone run into issues with the Barracuda SPAM filter catching
    emails sent through mailman 2.1.6 with the new Office 2007 format
    documents attached? The email admin says Barracuda is seeing the
    messages as containing a .zip attachment, not a .docx attachment. We
    disabled the .zip filtering temporarily to work around the problem. The
    email admin is contacting Barracuda to see if this is there problem, and
    I thought I would ping here to see if others might be having the same
    problem.

    OT, but...

    docx files are zip archives containing a number of xml files, so
    Barracuda is recognizing the file by its content rather than by
    extension.

    Perhaps Barracuda would be willing/able to make their appliance perform
    a more in depth content analysis to determine if this zip file appears
    to be a docx or open document or Google Earth .kmz or other known file
    type which is in fact a zip archive of other files, but apparently
    they do not currently do this.

    --
    Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan



    ------------------------------

    Message: 3
    Date: Wed, 26 Mar 2008 22:13:25 -0500
    From: Brad Knowles <brad at shub-internet.org>
    Subject: Re: [Mailman-Users] Mailman 2.1.6 and Office 2007 documents
    To: "Whitcomb, Jeff" <jmwhitco at samford.edu>,
    <mailman-users at python.org>
    Message-ID: <p06240801c410c11e3414@[192.168.1.199]>
    Content-Type: text/plain; charset="us-ascii" ; format="flowed"
    On 3/26/08, Whitcomb, Jeff wrote:

    Has anyone run into issues with the Barracuda SPAM filter catching
    emails sent through mailman 2.1.6 with the new Office 2007 format
    documents attached? The email admin says Barracuda is seeing the
    messages as containing a .zip attachment, not a .docx attachment. We
    disabled the .zip filtering temporarily to work around the problem. The
    email admin is contacting Barracuda to see if this is there problem, and
    I thought I would ping here to see if others might be having the same
    problem.
    Note that .docx *IS* a ZIP file. See
    <http://channel9.msdn.com/ShowPost.aspx?PostIDs329>.

    --
    Brad Knowles <brad at shub-internet.org>
    LinkedIn Profile: <http://tinyurl.com/y8kpxu>


    ------------------------------

    Message: 4
    Date: Wed, 26 Mar 2008 21:31:35 -0700
    From: Mark Sapiro <mark at msapiro.net>
    Subject: Re: [Mailman-Users] Mailman does not deliver messages any
    more
    To: Tomasz Chmielewski <mangoo at wpkg.org>
    Cc: mailman-users at python.org
    Message-ID: <PC17602008032621313502031623502e at msapiro>
    Content-Type: text/plain; charset=iso-8859-1

    Tomasz Chmielewski wrote:
    OutgoingRunner was running, and there were messages in qfiles/out. Other
    points from that FAQ entry didn't apply much as well.

    If there were messages in qfiles/out/, but they weren't being picked up
    by OutgoingRunner, OutgoingRunner was in some funny state or it may
    have been hung waiting for a low level SMTP response.

    Simply restarting Mailman helped (why didn't I do it in the first place?
    I guess I'm just not accustomed to restarting), but I'm still not sure
    of the reason it stopped delivering messages.

    For whatever reason, OoutgongRunner wasn't doing its job. Restarting
    Mailman got it going again. Possibly something as simple as sending it
    a SIGHUP would have started it too.

    --
    Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan



    ------------------------------

    ------------------------------------------------------
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    End of Mailman-Users Digest, Vol 49, Issue 49
    *********************************************
  • Mark Sapiro at Mar 27, 2008 at 4:34 pm

    Whitcomb, Jeff wrote:
    Thanks for the reply. I guess I forgot to mention that Barracuda is only catching the mail with the Office 2007 attachment if it was sent to a list for delivery. If I send an email directly to another person on campus, not using a list, then the message delivers fine.

    I don't know what Mailman would be doing to such a message that would
    cause it to be filtered by Barracuda.

    Or are you saying that Barracuda catches it on the way to the list as
    opposed to from the list. That would be even more of a mystery.

    Since Barracuda undoubtedly has all sorts of proprietary trade secret
    things that it does, I think you would have to persue this with them
    to the extent that they are willing to help.

    --
    Mark Sapiro <mark at msapiro.net> The highway is for gamblers,
    San Francisco Bay Area, California better use your sense - B. Dylan

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