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	<title>Sys Admin Guides, How To&#039;s, etc  by Marios Maravelias &#187; Mail Server</title>
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	<description>where prophets and madmen...walk hand in hand</description>
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		<title>xinetd[#]: Deactivating service smtp due to excessive incoming connections.  Restarting in 30 seconds.</title>
		<link>http://www.sys-admin.gr/54/security/xinetd-deactivating-service-smtp-due-to-excessive-incoming-connections-restarting-in-30-seconds/</link>
		<comments>http://www.sys-admin.gr/54/security/xinetd-deactivating-service-smtp-due-to-excessive-incoming-connections-restarting-in-30-seconds/#comments</comments>
		<pubDate>Thu, 15 Nov 2007 11:55:37 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Unix/Linux Various]]></category>
		<category><![CDATA[30]]></category>
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		<category><![CDATA[smtp]]></category>
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		<guid isPermaLink="false">http://www.sys-admin.gr/archives/security/54</guid>
		<description><![CDATA[This happened to a Plesk 8.x Linux (RH) server, the problem was that smtp service was up and running, and the queue was very light , but smtp wouldn&#8217;t accept any connections at port 25 even from localhost. In the /var/log/messages I saw this disturbing message: xinetd[#]: Deactivating service smtp due to excessive incoming connections. [...]]]></description>
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		<title>How to check if some one is spamming from my server (Linux Plesk 8.x)</title>
		<link>http://www.sys-admin.gr/53/security/how-to-check-if-some-one-is-spamming-from-my-server-linux-plesk-8x/</link>
		<comments>http://www.sys-admin.gr/53/security/how-to-check-if-some-one-is-spamming-from-my-server-linux-plesk-8x/#comments</comments>
		<pubDate>Tue, 13 Nov 2007 12:19:07 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[Unix/Linux Various]]></category>
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		<category><![CDATA[spamming]]></category>
		<category><![CDATA[to]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/security/53</guid>
		<description><![CDATA[If you see a lot of smtp connections or your server gets constantly in spam black lists, maybe you should check if some bot spams through your server. The are 2 cases of spamming through a box: 1)using unsecure php forms that bots abuse 2)using smtp connection from an outside client this artice is about [...]]]></description>
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		<title>How to send an email via telnet</title>
		<link>http://www.sys-admin.gr/45/unixlinux-various/how-to-send-an-email-via-telnet/</link>
		<comments>http://www.sys-admin.gr/45/unixlinux-various/how-to-send-an-email-via-telnet/#comments</comments>
		<pubDate>Mon, 29 Oct 2007 13:28:44 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[Unix/Linux Various]]></category>
		<category><![CDATA[An]]></category>
		<category><![CDATA[email]]></category>
		<category><![CDATA[How]]></category>
		<category><![CDATA[send]]></category>
		<category><![CDATA[telnet]]></category>
		<category><![CDATA[to]]></category>
		<category><![CDATA[via]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/unixlinux-various/45</guid>
		<description><![CDATA[Run the command telnet [host] port for example: -telnet mail.domain.tld 25 Right after the connection is established we will get a message like this: 220 hostname ESMTP so we give the command : -(if the servers has authenticaton for smtp you will have to give &#8220;auth login&#8221; first, you can use this decoder: http://www.dillfrog.com/tools/base-64_encode/) then [...]]]></description>
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		<title>How do i send emails from my Web Application ? (.NET &amp; ASP)</title>
		<link>http://www.sys-admin.gr/36/mail-server/how-do-i-send-emails-from-my-web-application/</link>
		<comments>http://www.sys-admin.gr/36/mail-server/how-do-i-send-emails-from-my-web-application/#comments</comments>
		<pubDate>Wed, 11 Jul 2007 11:17:38 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[Application]]></category>
		<category><![CDATA[ASP]]></category>
		<category><![CDATA[do]]></category>
		<category><![CDATA[emails]]></category>
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		<category><![CDATA[send]]></category>
		<category><![CDATA[Web]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/mail-server/36</guid>
		<description><![CDATA[here you can find various ways of sending emails with .NET 2 / .Net 1 CDONTS / Persist&#8217;s AspEmail / VB / PHP etc - Sending emails in ASP.NET 2.0 // using System.Net.Mail; // using System.Net; SmtpClient smtpClient = new SmtpClient(&#8220;smtp.domainHosted.com&#8221;); smtpClient.Credentials = new NetworkCredential(&#8220;user1@domainHosted.com&#8221;, &#8220;passwordHere&#8221;); MailMessage message = new MailMessage(); message.From = new MailAddress(user1@domainHosted.com); [...]]]></description>
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		<title>Smtp Connections list</title>
		<link>http://www.sys-admin.gr/31/unixlinux-various/smtp-connections-list/</link>
		<comments>http://www.sys-admin.gr/31/unixlinux-various/smtp-connections-list/#comments</comments>
		<pubDate>Mon, 04 Jun 2007 13:31:01 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
		<category><![CDATA[Unix/Linux Various]]></category>
		<category><![CDATA[connections]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[list]]></category>
		<category><![CDATA[Network]]></category>
		<category><![CDATA[Qmail]]></category>
		<category><![CDATA[smtp]]></category>
		<category><![CDATA[unix]]></category>

		<guid isPermaLink="false">http://www.sys-admin.gr/archives/unixlinux-various/31</guid>
		<description><![CDATA[You can check what connection you have via smtp protocol with the simple command: netstat -a &#124; grep smtp The output must be something like this: root /scripts# netstat -a &#124; grep smtp tcp 0 0 *:smtp *:* LISTEN tcp 0 14 myserver.tld:smtp dyn-86.106.61.22.ph.up:3025 ESTABLISHED tcp 0 1 myserver.tld:55355 mta-v9.mail.vip.mud.ya:smtp SYN_SENT tcp 0 1 myserver.tld:55380 [...]]]></description>
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		<title>How do I change the address Qmail (MAILER-DAEMON@hostname.tld) sends error messages to.</title>
		<link>http://www.sys-admin.gr/17/mail-server/how-do-i-change-the-address-qmail-mailer-daemonhostnametld-sends-error-messages-to/</link>
		<comments>http://www.sys-admin.gr/17/mail-server/how-do-i-change-the-address-qmail-mailer-daemonhostnametld-sends-error-messages-to/#comments</comments>
		<pubDate>Tue, 29 May 2007 13:58:39 +0000</pubDate>
		<dc:creator>MaRiOs</dc:creator>
				<category><![CDATA[Mail Server]]></category>
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		<category><![CDATA[ERROR]]></category>
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		<category><![CDATA[I]]></category>
		<category><![CDATA[MAILER-DAEMON@hostname.tld]]></category>
		<category><![CDATA[messages]]></category>
		<category><![CDATA[Qmail]]></category>
		<category><![CDATA[sends]]></category>
		<category><![CDATA[the]]></category>
		<category><![CDATA[to]]></category>

		<guid isPermaLink="false">http://sys-admin.gr/archives/mail-server/17</guid>
		<description><![CDATA[As By default Plesk administrator&#8217;s email address is listed in: /var/qmail/alias/.qmail-mailer-daemon /var/qmail/alias/.qmail-postmaster /var/qmail/alias/.qmail-root You can edit these files and set the email which you need. Taken from http://kb.swsoft.com/]]></description>
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