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<p class=MsoNormal>Hi<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have a couple of questions regarding watermarking, I don’t
know if anyone else is being hit the same but quite a few domains I look after
have been being hit by backscatter attacks over the last week.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I already reject all invalid recipients but these
backscatters seem to be targeting real aliases.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I want to use watermarks to filter out the bounces where the
original message did not come from my servers, but only on certain domains.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Do I just set<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Use Watermarking = yes<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Add Watermark = %rules-dir%/add.watermark.rules<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>add.watermark.rules<o:p></o:p></p>
<p class=MsoNormal>FromTo: default no<o:p></o:p></p>
<p class=MsoNormal>From: <a href="mailto:*@domain.com">*@domain.com</a> yes<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Check Watermarks With No Sender =
%rules-dir%/check.watermarks.rules<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>check.watermarks.rules<o:p></o:p></p>
<p class=MsoNormal>FromTo: default no<o:p></o:p></p>
<p class=MsoNormal>To: <a href="mailto:*@domain.com">*@domain.com</a> yes<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Would this add a watermark for e-mail coming from <a
href="mailto:*@domain.com">*@domain.com</a> and only check watermarks for
e-mail coming into <a href="mailto:*@domain.com">*@domain.com</a> – all other
domains would work as they currently do?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is there any other caveats to watch out for? I seem to
recall some discussion about it misfiring on Microsoft delivery recipients?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Cheers<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Paul<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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