TNEF problem

Julian Field jkf at
Fri Sep 28 22:45:15 IST 2001

At 19:00 28/09/2001, you wrote:
>At 11:14 28/09/2001, you wrote:
>> >-----Original Message-----
>> >From: S.R.Patterson [mailto:S.R.Patterson at SOTON.AC.UK]
>> >Sent: Monday, September 10, 2001 8:42 PM
>> >Subject: Re: TNEF problem
>> >
>> >
>> >Finally it's VERY worthey of note that since this method aborts without
>> >unpacking the attachment there is no guarantee that viruses won't get
>> >inside tnef type attachments.  If you're worried perhaps you (Jules) can
>> >on the return code of tnef and if it's -1 (failure) then you reject the
>> >attachment as "Unexpandable archive, rejected" or something?  Or do you
>> >do this?
>> >
>> >Steve
>>   We are running mailscanner 2.42 with TNEF 1.0.1. We are seeing a number of
>>mails where TNEF gets stuck and aborted after 2 minutes and the mail is then
>>delivered to the recipient.
>>Is there any way to quarantine these unscanned mails/attachments?
>This is fixed in version 2.50. If anything goes wrong with the TNEF
>expansion, it will abandon the entire message as "unparsable" and refuse to
>deliver any of it.

Slight improvement to that: what will happen is the winmail.dat attachment
will be deemed "unparsable" and not delivered, but the plain text version
of the message will still get through.
Julian Field                Teaching Systems Manager
jkf at         Dept. of Electronics & Computer Science
Tel. 023 8059 2817          University of Southampton
                             Southampton SO17 1BJ

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