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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Yes!<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The basic premise is to configure your MTA
(sendmail, postfix, whatever) to verify the &#8220;RCPT TO:&#8221; header field
against an LDAP request, via a built-in or modular mechanism.  In reality, it
is outside of the scope of MailScanner <i><span style='font-style:italic'>specifically</span></i>,
but is an interesting and worthwhile exercise nonetheless.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What MTA are you using?  That will define
your next course of action, since the methodology is (obviously) different from
depending on that factor.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

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<p class=MsoNormal><font size=1 color=navy face="Courier New"><span lang=FR-CA
style='font-size:8.0pt;font-family:"Courier New";color:navy'>--<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=FR-CA
style='font-size:10.0pt;font-family:"Courier New";color:navy'>&nbsp; _<br>
&nbsp;°v°&nbsp; </span></font><st1:PersonName w:st="on"><font size=2
 color=navy face="Arial Narrow"><span lang=FR-CA style='font-size:10.0pt;
 font-family:"Arial Narrow";color:navy'>Daniel Maher</span></font></st1:PersonName><font
size=2 color=navy face="Courier New"><span lang=FR-CA style='font-size:10.0pt;
font-family:"Courier New";color:navy'><br>
/(_)\ </span></font><font size=2 color=navy face="Arial Narrow"><span
lang=FR-CA style='font-size:10.0pt;font-family:"Arial Narrow";color:navy'>Administrateur
Système Unix</span></font><font color=navy><span lang=FR-CA style='color:navy'><o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face="Courier New"><span lang=FR-CA
style='font-size:10.0pt;font-family:"Courier New";color:navy'>&nbsp;</span></font><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>^ ^</span></font><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> &nbsp;</span></font><font size=2 color=navy face="Arial Narrow"><span
style='font-size:10.0pt;font-family:"Arial Narrow";color:navy'>Unix System
Administrator<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><em><i><font size=1 color=navy face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:navy'>Sentio aliquos togatos
contra me conspirare.</span></font></i></em><o:p></o:p></p>

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face="Times New Roman"><span style='font-size:12.0pt'>

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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
mailscanner-bounces@lists.mailscanner.info
[mailto:mailscanner-bounces@lists.mailscanner.info] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Devon Harding<br>
<b><span style='font-weight:bold'>Sent:</span></b> September 21, 2006 9:20 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">MailScanner
 discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> LDAP Rejection</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Is there any way to reject incoming messages based on an LDAP lookup to
my Active Directory forest?<br>
<br>
-<st1:place w:st="on">Devon</st1:place><o:p></o:p></span></font></p>

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