--On 10 January 2006 13:39:55 -0500 Sam Michaels
<samthecomputerman@???> wrote:
> On 1/9/06, Jethro R Binks <jethro.binks@???> wrote:
>>
>> Recognising that Date: and From: are required by RFC2822, I can't see
>> that the above would be an 'unsafe' test .. can anyone else see any
>> potential difficulties?
>
>
> That was part of my spam checks but had to disable it because Microsoft
> Outlook is not RFC compliant in that respect. I haven't actually checked
> to see where it's failing, but one of these directives--although correct
> RFC wise--will bounce legit mails from Outlook:
>
> deny
> message = Your message does not conform to RFC2822 standard
> log_message = message headers fail syntax check
> !verify = header_syntax
>
> deny
> message = Your message does not conform to RFC2822 standard
> log_message = missing message headers
> !hosts = +relay_from_hosts
> !senders = :
> condition = ${if or {{!def:h_Message-ID:}{!def:h_Date:}}
> {true}{false}}
>
> Never bounces email from any other client...only MS Outlook.
>
> Sam
I think it must be the Message ID that's failing. We use header_syntax
checks, but have some Outlook users. Some Exchange servers leak messages
with bad header syntax, though ( I think).
--
Ian Eiloart
Servers Team
Sussex University ITS
