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<?xml-stylesheet type="text/xsl" href="http://blogs.technet.com/utility/FeedStylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Who is David Lemson?</title><link>http://blogs.technet.com/dlemson/pages/64842.aspx</link><description>I am a Group Program Manager in the Exchange product group. I've worked in Exchange my entire time at Microsoft, since early 1998. I've worked on quite a lot of different areas of Exchange in my time here: SMTP and mail routing, POP/IMAP, Exchange System</description><dc:language>en-US</dc:language><generator>CommunityServer 2.1 SP1 (Build: 61025.2)</generator><item><title>re: Who is David Lemson?</title><link>http://blogs.technet.com/dlemson/pages/64842.aspx#202547</link><pubDate>Fri, 30 Jul 2004 21:12:00 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:202547</guid><dc:creator>Brian Baker</dc:creator><description>I have just installed a exchage 2003 serve and when I trie to send email to other outside of my domain i recieve this error message. The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'brian@provident.org'. Subject '1', Account: 'noitgroup.com', Server: 'noitgroup.com', Protocol: SMTP, Server Response: '550 5.7.1 Unable to relay for brian@provident.org', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79&lt;br&gt;&lt;br&gt;I have granted rights to my users under the smtp properties for relay. I have 5 user that work and I am the 6th I can recieve mail but not get mail. Help</description></item><item><title>re: Who is David Lemson?</title><link>http://blogs.technet.com/dlemson/pages/64842.aspx#204343</link><pubDate>Sun, 01 Aug 2004 17:26:00 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:204343</guid><dc:creator>David Lemson</dc:creator><description>Make sure the client is doing SMTP authentication.</description></item><item><title>HELLOMOTO</title><link>http://blogs.technet.com/dlemson/pages/64842.aspx#272316</link><pubDate>Tue, 30 Nov 2004 19:34:00 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:272316</guid><dc:creator>You Had Me At EHLO...</dc:creator><description /></item><item><title>Exchange 12 has been announced... Now how can YOU work on it?</title><link>http://blogs.technet.com/dlemson/pages/64842.aspx#366422</link><pubDate>Thu, 03 Feb 2005 21:10:00 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:366422</guid><dc:creator>You Had Me At EHLO...</dc:creator><description /></item></channel></rss>