HTML/Newsletters being received as unreadable code

Wed Feb 20 17:30:50 GMT 2008

Hi guys

Thanks for the info, I corrected the space between the org-name and this 
seemed to have solved the problem as I tested it again and this time it 
was delivered correctly.

Thanks for all the help! And yes, egg on my face shall we say, I'll read 
the comments in the config more attentativly from now on ;-)

Kind Regards,
Andrew

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Re: HTML/Newsletters being received as unreadable code

Jules,

perhaps MS should not even start if that is the case ?

Regards,

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----- "Julian Field" <MailScanner at ecs.soton.ac.uk> wrote:

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Hash: SHA1

Mark Sapiro wrote:
> Steve Freegard wrote:
>
> 
>> Andrew Chester wrote:
>> 
>>> X-Ukuvuma Solutions-MailScanner-From: support at kalahari.net
>>> 
>>           ^^^
>>
>> There's your problem - you have spaces in your %org-name% setting in 
>> MailScanner.conf.
>> 
>
> While the space in %org-name% is wrong, it does not seem to be the
> cause of the problem.
>
> Here's what I see in the last few headers and body:
>
> ---------------------------------------------------------------
> content-transfer-encoding: base64
> content-type: text/plain; charset=utf-8
>
> X-Ukuvuma Solutions-MailScanner-From: support at kalahari.net
> X-Spam-Status: No
>
> X-Ukuvuma Solutions-MailScanner-From: support at kalahari.net
> X-Spam-Status: No
>
> WW91ciBLYWxhaGFyaS5uZXQgcGFzc3dvcmQgaXMgODAwNjAwCi0tIApUaGlz
> IG1lc3NhZ2UgaGFzIGJlZW4gc2Nhbm5lZCBmb3IgdmlydXNlcyBhbmQKZGFu
> Z2Vyb3VzIGNvbnRlbnQgYnkgdGhlIFVrdXZ1bWEgQXBvbGxvIGdhdGV3YXkg
> YW5kIGlzCmJlbGlldmVkIHRvIGJlIGNsZWFuLgoK
> -----------------------------------------------------------------
>
> The two sets of MailScanner headers are curious, but it looks from the
> Received: headers that the message passed twice through
> apollo.ukuvuma.co.za so it was probably scanned twice.
>
> The real problem is the empty lines preceeding each set of MailScanner
> headers. This causes the MailScanner headers to be part of the body
> which totally destroys the base64 encoding and results in the garbled
> message.
>
> I suspect that all base64 encoded messages get garbled this way and
> non-bas64 encoded messages show the MailScanner headers in the body.
>
> Perhaps someone with more MailScanner experience has a clue as to why
> the MailScanner headers are preceded by an empty line.
> 
It's probably the MTA (or MailScanner) attempting to render the message 
in a form correct for the next mail handling program it passes through. 
There should always be a blank line after the last header. But I don't 
guarantee what MailScanner will do if the headers end on an incomplete 
line, as it never happens in real mail that hasn't been screwed by 
something (in your case, the space in %org-name%).

The point about spaces in %org-name% is very clearly documented in the 
MailScanner.conf file.

If you break that rule I make no guarantees what may happen to your mail.

I will add some more code to check for that and flag it very boldly in 
the logs, and ensure that MailScanner --debug and MailScanner --lint 
check for it too.

Jules

- -- 
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www.MailScanner.info
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MailScanner customisation, or any advanced system administration help?
Contact me at Jules at Jules.FM

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