RSS feed is showing error after subscription

Question

In my asp.net 3.5 C# web application I implemented RSS feed using System.ServiceModel.Syndication assembly. That feed is working fine in local and is updating correctly. I deployed the application on cloud I and added the website to the trsted sites list in my internet explorer and subscribed to the feed. After the subscription when I open the feed again its showing error message "This feed contains errors. Internet Explorer will try updating this feed again later" In my application I am using ADFS authentication with basic http binding. I am not using any sessions or cookies to implement the feed also. Let me know what will be the probelm.

Below is the xml got in the browser when i subscribed to the feed.

<?xml version="1.0" encoding="utf-8" ?> 
- <rss xmlns:a10="http://www.w3.org/2005/Atom" version="2.0">
- <channel>
  <title>Ramana's qustion1</title> 
  <link>http://mysite&lt;/link&gt; 
  <description>This is a RSSFeed Generated for</description> 
  <language>en-US</language> 
  <copyright>Copyright 2009-2012 Microsoft</copyright> 
  <category>ramana</category> 
  <generator>FeedGeneratorName</generator> 
- <item>
  <link>http://mysite&lt;/link&gt; 
  <author>Anil Kondabathini (Mindtree) Votes :3 Favourite Count:0</author> 
  <category>ramana</category> 
  <title>Ramana's qustion1</title> 
  <description>Ramana's qustion1</description> 
  <pubDate>Wed, 25 Aug 2010 11:05:03 Z</pubDate> 
  <a10:updated>2010-08-25T11:05:03Z</a10:updated> 
  </item>
- <item>
  <guid isPermaLink="false">206</guid> 
  <link>http://mysite&lt;/link&gt; 
  <author>Ramana Nidamanuri (Aztecsoft-Disha)</author> 
  <title>Answer By Ramana  for Ramana's qustion1</title> 
  <description>sdsdsssssssssdfdfgdfdfgdf http://www.google.com; https://www.google.com; ftp://www.google.com;\\server</description> 
  <pubDate>Wed, 25 Aug 2010 11:01:52 Z</pubDate> 
  <a10:updated>2010-08-25T11:01:52Z</a10:updated> 
  </item>
  </channel>
  </rss>