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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have a RedHat ES 4 server running sendmail (8.13.1) and I
am using the latest MailScanner version (4.73.4-2), ClamAV 0.94.2 and
SpamAssassin 3.2.5.<span style='mso-spacerun:yes'> </span>I need help
with a rule that should block all outside users from sending emails to our
aliases and only allow them to come from people from our domain.<span
style='mso-spacerun:yes'> </span>For example we have an alias called _<span
class=SpellE><i><span style='font-style:italic'>all_users</span></i></span>_
and it is literally all users on the system.<span
style='mso-spacerun:yes'> </span>Somehow spammers are able to see these
aliases on the system (I hope there is a way to disallow them from seeing the
aliases) and then they are sending SPAMs to these aliases so when they send a
spam to <a href="mailto:_all_users_@domain.com">_<i><span style='font-style:
italic'>all_users</span></i>_@domain.com</a> everybody gets that spam.<span
style='mso-spacerun:yes'> </span>Could somebody write this rule and show
what directive to put in the <span class=SpellE>MailScanner.conf</span> if any.
<span style='mso-spacerun:yes'> </span>I have tried a few but none worked.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;mso-no-proof:yes'>Best regards,</span></font><span
style='mso-no-proof:yes'><o:p></o:p></span></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
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</span></font><st1:place><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;mso-no-proof:yes'>Nasser</span></font></st1:place><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> </o:p></span></font></p>
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