[Jurko Gospodnetić <jurko.gospodnetic@xxxxxx>]

  Hi.

  I don't know where to report this so I'll try here. :-)

  Wireshark's mailing list RSS feeds (e.g. 
http://www.wireshark.org/lists/wireshark-announce.rss) seem to have an 
invalid <guid> XML element value (for each RSS item).

  In an element such as:

  <guid isPermaLink="true">XXX</guid>

  XXX must be a valid link that can be used by a web browser to access 
the item's data.

  Wireshark's RSS feeds have some date/time value there:

    <item>
      <title>[Wireshark-announce] Wireshark 1.2.13 is now
      available</title>
      <link>

http://www.wireshark.org/lists/wireshark-announce/201011/msg00001.html</link>
      <guid isPermaLink="true">Fri, 19 Nov 2010 20:24:12 GMT</guid>
      <pubDate>Fri, 19 Nov 2010 20:24:12 GMT</pubDate>
    </item>

  Which should, by my guess, read:

    <item>
      <title>[Wireshark-announce] Wireshark 1.2.13 is now
      available</title>
      <link>

http://www.wireshark.org/lists/wireshark-announce/201011/msg00001.html</link>
      <guid 
isPermaLink="true">http://www.wireshark.org/lists/wireshark-announce/201011/msg00001.html</guid>
      <pubDate>Fri, 19 Nov 2010 20:24:12 GMT</pubDate>
    </item>

  With this incorrect formatting such RSS feeds can not be read using 
the Thunderbird mail client (related Thunderbird bug report: 
https://bugzilla.mozilla.org/show_bug.cgi?id=624089).

  Hope this helps.

  Best regards,
    Jurko Gospodnetiďż˝