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<h1>Server Black Lists</h1>

<p>This page allows you to add, edit, and delete server black lists. All 
 black lists that are currently configured for the server are displayed 
 here. Server black list information is stored in the <span style="font-style: italic;"><I>spamblkm.txt</I></span> 
 file which is located in the IMail top directory. For a list of the black 
 lists that are configured by default, <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->see<a href="t_configbl.html"> Pre-configured Black Lists</a>.</p>

<p class="whs1"><SPAN style="background-color: #dddddd; "><span style="font-weight: bold; color: #800000;"><FONT COLOR=maroon ><B>Note:</B></FONT></span> 
 Only black lists that are configured and enabled on this page are available 
 for use by a host.</SPAN></p>

<h2>Working with Server DNS Black Lists</h2>

<ul type="disc" class="whs2">
	
	<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted>To 
 add a DNS black list, click <span style="font-weight: bold;"><B>Add</B></span> 
 and the <span style="font-weight: bold;"><B>Server Black List Entry</B></span> 
 page is displayed. For more information on adding a DNS black list, see 
 <a href="cs_serverblacklistentry.html">Adding a server black list entry.</a></p></li>
	
	<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted>To 
 delete a black list, click the trash can icon located next to the entry you want to delete. To delete all black lists, click 
 <span style="font-weight: bold;"><B>Delete All</B></span>.</p></li>
	
	<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted>To 
 edit a black list entry, click the pencil icon located next to the entry that you want to edit.</p></li>
</ul>

<p class="whs3">Display Labels:</p>

<p class="whs4"><span style="font-weight: bold;"><B>Name.</B></span> 
 <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->The display 
 name that is used to identify the blacklist at the server and host levels, 
 and in log files.</p>

<p class="whs5"><span style="font-weight: bold;"><B>Server.</B></span> 
 The domain name or IP address of the DNS server to contact for black list 
 queries.</p>

<p class="whs6"><span style="font-weight: bold;"><B>Query Domain.</B></span> 
 The domain to query. This name usually matches the server domain name. 
 However, sometimes a black list will contain multiple zones to query on 
 the same server. When this happens, the server name and the query domain 
 will be different.</p>

<p class="whs7"><span style="font-weight: bold;"><B>Type.</B></span> 
 <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->The type 
 of lookup that the black list performs. Select one of the following types:</p>

<ol type="disc" class="whs8">
	
	<ul type="disc" class="whs9">
		
		<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted><span 
 style="font-weight: bold;"><B>ADDR (address).</B></span> Uses a message's FROM 
 address to determine if the message is spam.</p></li>
		
		<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted><span 
 style="font-weight: bold;"><B>DNS.</B></span> Checks the IP address of the connecting 
 SMTP agent against spam databases to determine if the message is spam. 
 If the IP address is listed in one of the black lists databases, the message 
 is identified as spam.</p></li>
		
		<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted><span 
 style="font-weight: bold;"><B>HELO.</B></span> Checks the domain supplied in 
 the HELO or EHLO command to determine whether the message is spam. The 
 host name that is given in the HELO/EHLO command must match the IP address.</p></li>
		
		<li class=kadov-p-CTopic-Text-Bulleted><p class=Topic-Text-Bulleted><span 
 style="font-weight: bold;"><B>RHS (right-hand side).</B></span> Checks the information 
 following the @ symbol supplied in the &quot;MAIL FROM&quot; command to 
 lookup the domain name to determine whether the message is spam.</p></li>
	</ul>
</ol>

<p class="whs10"><span style="font-weight: bold;"><B>Enabled.</B></span> 
 If the black list is enabled, <span style="font-weight: bold;"><B>Yes</B></span> 
 will be displayed, meaning that the black list can be used by hosts. If 
 the black list is disabled, <!--kadov_tag{{<spaces>}}-->&nbsp;<span style="font-weight: bold;"><B><!--kadov_tag{{</spaces>}}-->No</B></span> 
 will be displayed, meaning that the black list cannot be used by hosts.</p>

<p class="whs11"><span style="font-weight: bold;"><B><!--kadov_tag{{<ignored>}}-->TCP<!--kadov_tag{{</ignored>}}-->/IP 
 First.</B></span> <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->Identifies 
 black lists that require the use of TCP to query the black list.</p>

<p class="whs12"><SPAN style="background-color: #dddddd; "><span style="font-weight: bold; color: #800000;"><FONT COLOR=maroon ><B>Note:</B></FONT></span> 
 It is up to the administrator to know whether each black list uses UDP 
 or TCP protocol.</SPAN></p>

<!--kadov_tag{{<implicit_empty_p>}}-->&nbsp;<br><!--kadov_tag{{</implicit_empty_p>}}-->


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<p class=Tip-Note-Heading>Related Topics:</p>

<p class=Tip-Note-Heading><a href="cs_serverblacklistentry.html">Adding 
 a Server Black List Entry</a></p>

<p class=Tip-Note-Heading><a href="cs_hostblacklist.html">Host Black Lists</a></p>

<p class=Tip-Note-Heading>&nbsp;</p>

<p class=Tip-Note-Heading>&nbsp;</p>

<p class=Topic-Text-Numbered>&nbsp;</p>

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