The new watermarking feature in 4.62 - an unexpected side effect?

[Rose, Bobby]

That's would be an SA rule then.  What was the reason for this check
again...treating invalid watermark with no sender?  Watermarking is
still a good idea especially if you have multipled systems but not sure
about no sender part.




-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of UxBoD
Sent: Friday, August 03, 2007 4:21 AM
To: MailScanner discussion
Subject: Re: The new watermarking feature in 4.62 - an unexpected side
effect?

Perhaps instead of marking as Spam straight off a score could be applied
instead ? That may be a solution ??

Regards,

--[ UxBoD ]--
// PGP Key: "curl -s https://www.splatnix.net/uxbod.asc | gpg --import"
// Fingerprint: C759 8F52 1D17 B3C5 5854  36BD 1FB1 B02F 5DB5 687B //
Keyserver: www.keyserver.net Key-ID: 0x5DB5687B // Phone: +44 845 869
2749 SIP Phone: uxbod at sip.splatnix.net

----- Original Message -----
From: "Martin.Hepworth" <martinh at solidstatelogic.com>
To: "MailScanner discussion" <mailscanner at lists.mailscanner.info>
Sent: Friday, August 3, 2007 8:57:02 AM (GMT) Europe/London
Subject: RE: The new watermarking feature in 4.62 - an unexpected side
effect?

Quentin

I do hope OoO responders die, they are a PITA. A lot of people here have
started to used them again (now I've made it easy to do - d'oh) and it
caused at least 1 email storm from a bad list.

Personally I haven't used them for years - hmm lets see one of the
senior IT guys is out, let attack the network...

--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300

> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info [mailto:mailscanner- 
> bounces at lists.mailscanner.info] On Behalf Of Quentin Campbell
> Sent: 03 August 2007 08:47
> To: MailScanner discussion
> Subject: The new watermarking feature in 4.62 - an unexpected side
effect?
>
> Julian
>
> Am running 4.62.9-2 on 8 gateways with the new watermarking feature 
> enabled.
>
> It has given rise to an increase in requests to "whitelist" addresses 
> of messages that are being tagged.
>
> The messages in question have a blank 'From:' address following the 
> "Our MailScanner believes that the attachment to this message sent to
you..."
> rubric.
>
> On inspection these messages are almost always 'vacation' or OoO
messages.
> It seems that there are good operational reasons for these sorts of 
> auto responders to set the envelope-sender address to be null. However

> this causes them to be tagged as spam by MailScanner if watermarking 
> is enabled.
>
> I don't consider it appropriate to whitelist addresses in this 
> situation but they are 'genuine' messages nonethelees and may well be 
> missed if people are filtering into a 'junk mail' folder on the tag. I

> can't see a way around this.
>
> I note, however, that JANET in its latest guidance on avoiding 
> inappropriate e-mail bounces (April 2007) - 
> http://www.ja.net/cert/email/dontbounce.html - deprecate the use of 
> vacation/OoO so perhaps we will see the use of OoO responders reduce 
> in future?
>
> Quentin
> ---
> PHONE: +44 191 222 8209    Information Systems and Services (ISS),
>                            Newcastle University,
>                            Newcastle upon Tyne,
> FAX:   +44 191 222 8765    United Kingdom, NE1 7RU.
> ----------------------------------------------------------------------
> --
>
>
>
> --
> MailScanner mailing list
> mailscanner at lists.mailscanner.info
> http://lists.mailscanner.info/mailman/listinfo/mailscanner
>
> Before posting, read http://wiki.mailscanner.info/posting
>
> Support MailScanner development - buy the book off the website!




**********************************************************************
Confidentiality : This e-mail and any attachments are intended for the
addressee only and may be confidential. If they come to you in error you
must take no action based on them, nor must you copy or show them to
anyone. Please advise the sender by replying to this e-mail immediately
and then delete the original from your computer.
Opinion : Any opinions expressed in this e-mail are entirely those of
the author and unless specifically stated to the contrary, are not
necessarily those of the author's employer.
Security Warning : Internet e-mail is not necessarily a secure
communications medium and can be subject to data corruption. We advise
that you consider this fact when e-mailing us. 
Viruses : We have taken steps to ensure that this e-mail and any
attachments are free from known viruses but in keeping with good
computing practice, you should ensure that they are virus free.

Red Lion 49 Ltd T/A Solid State Logic
Registered as a limited company in England and Wales (Company
No:5362730) Registered Office: 25 Spring Hill Road, Begbroke, Oxford OX5
1RU, United Kingdom
**********************************************************************

--
MailScanner mailing list
mailscanner at lists.mailscanner.info
http://lists.mailscanner.info/mailman/listinfo/mailscanner

Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website!

--
This message has been scanned for viruses and dangerous content by
MailScanner, and is believed to be clean.



-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

-- 
MailScanner mailing list
mailscanner at lists.mailscanner.info
http://lists.mailscanner.info/mailman/listinfo/mailscanner

Before posting, read http://wiki.mailscanner.info/posting

Support MailScanner development - buy the book off the website!