Confirmed that I can't update.

But you shouldn't be seeing "This part contains an attachment that can 
not be displayed within this part:" either, so that could be where the 
problem really lies.

Yes, though now that you mention that explicitly, I only noticed that 
version, and not the different version in the dom extension. Anyway, 
it could still be a bug fix in 2.7.7.

I know Jan.. And If you look at the version of libxml is 2.7.7.. 
Executing test.php (script included in horde) the result is OK

XML Parser support: Yes

Would you refer to "libxslt compiled against libxml Version => 
2.6.23"?! May be this?

Thank you.

As per INSTALL docs, libxml 2.7 is strongly suggested. Older versions 
are broken.

Michael, the problem is not specific with tidy extension.. I think the 
problem is dom + xmllib.. I've updated my server to CentOs 6.5 and 
works fine.. Looking to code and function return, I have two 
differents returns and in old server return wrong.

"./framework/Util/lib/Horde/Domhtml.php"
Line 86:
$doc->loadHTML($this->_xmlencoding . 
Horde_String::convertCharset($text, $charset, 'UTF-8'));

Here is my php libs and version

NEW SERVER

libexslt.so.0 => /usr/lib64/libexslt.so.0 (0x00007f4dcfee3000)
libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x00007f4dcd2ec000)

php -i |grep -i dom
dom
DOM/XML => enabled
DOM/XML API Version => 20031129
session.cookie_domain => no value => no value

php -i |grep -i xml
xmlrpc_error_number => 0 => 0
xmlrpc_errors => Off => Off
DOM/XML => enabled
DOM/XML API Version => 20031129
libxml Version => 2.7.6
libxml
libXML support => active
libXML Compiled Version => 2.7.6
libXML Loaded Version => 20706
libXML streams => enabled
mbstring.http_output_conv_mimetypes => ^(text/|application/xhtml\+xml) 
=> ^(text/|application/xhtml\+xml)
SimpleXML
Simplexml support => enabled
xml
XML Support => active
XML Namespace Support => active
libxml2 Version => 2.7.6
xmlreader
XMLReader => enabled
xmlrpc
core library version => xmlrpc-epi v. 0.51
homepage => http://xmlrpc-epi.sourceforge.net
xmlwriter
XMLWriter => enabled
libxslt compiled against libxml Version => 2.7.6


OLD SERVER
libxml2.so.2 => /usr/lib64/libxml2.so.2 (0x000000374c300000)
libxslt.so.1 => /usr/lib64/libxslt.so.1 (0x0000003749b00000)

php -i |grep -i dom
dom
DOM/XML => enabled
DOM/XML API Version => 20031129
session.cookie_domain => no value => no value

php -i |grep -i xml
xmlrpc_error_number => 0 => 0
xmlrpc_errors => Off => Off
DOM/XML => enabled
DOM/XML API Version => 20031129
libxml Version => 2.7.7
libxml
libXML support => active
libXML Compiled Version => 2.7.7
libXML Loaded Version => 20623
libXML streams => enabled
mbstring.http_output_conv_mimetypes => ^(text/|application/xhtml\+xml) 
=> ^(text/|application/xhtml\+xml)
SimpleXML
Simplexml support => enabled
xml
XML Support => active
XML Namespace Support => active
libxml2 Version => 2.7.7
xmlreader
XMLReader => enabled
xmlrpc
core library version => xmlrpc-epi v. 0.51
homepage => http://xmlrpc-epi.sourceforge.net
xmlwriter
XMLWriter => enabled
libxslt compiled against libxml Version => 2.6.23


I hope that is enough to do some compatibility patch .

OK. i will test in the another server.

thanks

That has nothing to do with making sure the tidy extension is installed.

All updated.!

Cannot reproduce either. Make sure you have the tidy extension installed.

I have de current stable version, the problem exist!!

The provided email displays fine for me in current Git.

Sorry.. now I attached the message example.

Michael, using last stable groupware webmail this message rende fine.. 
Using last git version occurs this problem..

This is almost certainly a badly formed email. Please attach an 
example email for further help.

I'm having the same problem.

Hello, when open mail with html viewer exist code in the body:

xmlns:v="urn:schemas-microsoft-com:vml" 
xmlns:o="urn:schemas-microsoft-com:office:office" 
xmlns:w="urn:schemas-microsoft-com:office:word" 
xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" 
xmlns="http://www.w3.org/TR/REC-html40">

help please.

thanks