Possible solution Solution : find the class.IXR.php file (under wp-includes), edit the file, and look for function output($xml) FInd the line that calculates the length $length = strlen($xml); and replace it by $length = strlen($xml)+3;

or if modsecurity is enabled set the following in an .htaccess file <files xmlrpc.php>SecFilterInheritance Off </files>

Don’t copy and paste text from MS Word because it adds junky code that IE hates. Either remove the bad mso code, or repaste your text from a text editor like notepad.

also
Instead of using crtl-v to past into the blog, plus use the “paste from word” button under the editor within WordPress. The button is next to the easer button.

or past into notepad2 and then into wordpress
Notepad2

Fix:
locate the wp-settings.php file
Search for define(’WP_MEMORY_LIMIT’, ‘32M’);
Change 32M to 64M : define(’WP_MEMORY_LIMIT’, ‘64M’);

for some reason this is different from setting the memory limit in the php.ini file. . :(

# BEGIN WordPress
<#IfModule mod_rewrite.c#> *take out the #’s*
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
<#/IfModule#> *take out the #’s *

# END WordPress

fix
chmod -R 777 wp-content/uploads

do not chmod wp-content to 777 , only chmod the uploads folders and subfolders.

The e-mail could not be sentPossible reason: your host may have disabled the mail() function...

You will need to setup a email box for word press to use let’s call it wordpress@yourdomain.com and set this in the options within the admin panel .

The above should fix it . if it does not read on

Next you will need to adjust your php.ini file to match the following

sendmail_path = /usr/sbin/sendmail -t -i              ;

If all else fails you can add this piece of code to your httpd.conf virtual containter .. you will need root access to the server to perform this or ask your host

 php_admin_value sendmail_path "/usr/sbin/sendmail -t -i -f webmaster@example.com"

This will resolve the error on a linux server