Though you can easily redirect Blogger Feeds to FeedBurner now, this has a side effect - you will see some warnings when you submit the Sitemaps file (xxx.blogspot.com/atom.xml) to Google Webmaster Tools. (see screenshot)

The following Sitemap warning messages are shown in the Google WebMaster Tools control when using Blogger feeds with FeedBurner:
Line: 2 Invalid XML: too many tags - Too many tags describing this tag.
Line: 2 Incorrect namespace - Your Sitemap or Sitemap index file doesn't properly declare the namespace.
It's like a catch 22 situation - you submit the blogger generated atom.xml file to Google Sitemaps but it's redirected to the FeedBurner feed and that causes invalid XML errors.
Fortunately there's a simple fix - just delete the existing sitemap and submit a new web sitemap that has the following URL:
http://xxx.blogspot.com/atom.xml?redirect=false [replace xxx with your blog name]
The secret redirect parameter in blogger feeds will offer you the best of both worlds. You XML Feeds will still be redirected to FeedBurner but for Google Sitemaps, the redirection won't happen at all.
Here's the webmaster console with the new sitemap URL - no warnings anymore though the feed format has changed from RSS to ATOM (that should not bother you).
You can find solutions to most of your FeedBurner problems in our FeedBurner FAQ Guide.
Find this article at: http://labnol.blogspot.com/2007/09/fix-blogger-sitemap-xml-warnings-inside.html
web: http://www.labnol.org/ email: amit@labnol.org

Reader Comments
It doesn't work or I dont understand something ! There is the same problem with the fact that the RSS feed is not in the root of the Blog in Blogger. Or your Blog must not be hosted on Blogspot ? (Sorry fot my very bad english...)
Written on 26/9/07 7:42 PM
Thanks for posting this, I never figured there would be a solution for this problem. I just made the changes and will wait to see if it works. Cheers.
Written on 27/9/07 12:08 AM
Thanks for the update Amit.
It would be useful for search-users to see this update on your previous post too.
Written on 27/9/07 10:23 AM
Thanks! just resubmitted my sitemap. I was tired of error. The error usually used to be that the link item is not at this location. hope this takes care of this error.
I also noticed that my feed had warnings because od As section targetting code.
Written on 27/9/07 11:38 PM
Great! I resubmitted my sitemap and it is on the right track now. Thanks for the wonderful tip.
Written on 28/9/07 9:12 AM
Thank you for your post.
and you have a really nice website too. :)
Written on 28/9/07 9:53 AM
Thanks for addressing this, Amit.
Written on 29/9/07 12:23 PM
Great Tip, I'm testing in out now.
Is this necessary for submitting to yahoo and other search directories?
Written on 1/10/07 10:24 AM
I never had these warnings to my blogspot blogs.
I guess the solution will be to add this as your sitemap url after choosing "Add General Web sitemap" as the option.
http://yourblogname.blogspot.com/
rss.xml?orderby=updated
Written on 2/10/07 6:21 PM
Thanks, I pray to the Lord Christ that this works for me.
For some reason, only one URL has been submitted lately (instead of 26 max) for two of my Blogger blogs.
Take care,
Paula
Written on 8/10/07 2:31 AM
Thank you so much, Amit.
This fix worked and all my Blogger blogs now have no sitemap errors and have 26 urls submitted.
Now -- is there any way to get around that 26 url max? Can I list all my URLs individually in a robots.txt file or something?
Thank you again so much,
Paula
Written on 8/10/07 3:47 AM
though it does work, there still seems to be no workaround the 26, unless google / blogspot introduces a sitemap feature as well , which they might in a few months looking at blogspots popularity.
Written on 25/11/07 10:11 AM
Thanks AMit for this, Well I did Read it Couple of Weeks Ago and feel Bit Lazy to Do it Unless I was Compile to Change the Sitemap,
I hope It will Work.
Great Find!!
Written on 28/11/07 4:46 PM
Thanks Amit, I could not figure out how to fix that and I was thinking who might have an answer, guess what: you were the first I remembered, I just did a search on your site and found the solution. Oh oh, waiting for the results. Thanks million times.
Written on 16/12/07 5:49 PM