Yes, you will notice that the external mail servers will try and redeliver these messages according to their own retry cycle as the smtp transactions get unexpectedly cut off at the very end of sending the TNEF message. I had 500MB in my scan dir, and that was from repetitive retrys for a single 8mb TNEF message. No info about the incoming message is logged on the Exim machine.
Anyway, I hope the problem gets fixed soon.
Cheers
Scott
-----Original Message-----
From: exim-users-admin@??? [
mailto:exim-users-admin@exim.org]On
Behalf Of Anand Buddhdev
Sent: Thursday, 19 February 2004 9:10 a.m.
To: Exim users list
Cc: tom@???
Subject: Re: [Exim] Re:TNEF Problems
On Thu, Feb 19, 2004 at 08:58:47AM +1300, Scott Truman wrote:
> Hi,
>
> As I get so few TNEF emails sent to our site, and until this bug is
> fixed (wherever it lies), I'm 'happy' to reject TNEF formatted emails
> coming into our system. How would I check for a Content-Type:
> application/ms-tnef header in an ACL?
>
> I'm amazed that more people aren't hitting this bug, or are they
> just unaware?
I just deployed an exim server with the exiscan patch, and I also
noticed that my /var/spool/exim/scan directory was filling up with
undeleted directories. I hadn't yet realised what was causing that,
until I saw this message, and then I went and looked, and sure enough,
all the directories left lying around contained messages that had
ms/tnef attachments. My directory had grown to 1.4 GB in just 2 days!
Maybe Tom can shed some light on this. There must be a missing unlink
or something missing in the code which handles tnef attachments.
> -----Original Message-----
> From: exim-users-admin@??? [mailto:exim-users-admin@exim.org]On
> Behalf Of R.B. (Rick)
> Sent: Thursday, 19 February 2004 6:53 a.m.
> To: Exim users list
> Subject: [Exim] Re:TNEF Problems
>
>
> I'm using this ACL:
>
> deny message = This message contains malware ($malware_name)
> log_message = MALWARE ($malware_name)
> malware = *
>
> how can i set to avoid scanning on .dat files?
>
> Thanks
>
> Riccardo
>
> ------------------------
> Hi Guys,
>
> since exiscan has problem with TNEF attachments like this:
>
> Content-Type: application/ms-tnef;
> name="winmail.dat"
> Content-Transfer-Encoding: base64
>
> exim stops and mail remain in scan/input directories without being
> delivered at all.
> How can avoid (for istance with an ACL) to pass to exiscan TNEF
> attachments (like winmail.dat)?
>
> Thanks
>
> Riccardo
--
Anand Buddhdev
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