It doesn't have anything to do with CSS, for some reason the share this JavaScript doesn't run on the post page.. Your theme probably isn't compatible with share this. Have you tried installing it manually?
When you are redirected to ghs.google.com google recieves an referrer heading, so that they know what domain you were redirected from. Nothing wrong with your quoting, mate
You could also try "AddType application/x-httpd-php .html .htm" and "AddHandler x-httpd-php .html .htm" But why can't you just use .php? BTW, I'm not sure you can use php inside a src attribute.. Edit: not sure, but maybe there's something wrong with the apache config of htaccess files, since byron isn't able to set TZ in .htaccess either.
1) When you set the CNAME for the domain mail.infantex.com.mx to ghs.google.com, you're basically saying that mail.infantex.com.mx is an alias of ghs.google.com, and thus you get redirected to gapps And did you check your spam folder?