Solved the problem when the option sendEmail is set to no and the field validation. Now, if the option is set to no, the validation of the fields is deactivated. If is set to yes, the validation is activated.

public/.htaccess

@@ -1,6 +1,6 @@
-# If you're a developer add the following line to your apache config. Otherwise ignore the line.
-# SetEnv APPLICATION_ENV development
+SetEnv APPLICATION_ENV development
 RewriteEngine On
+RewriteBase /msd
 RewriteCond %{REQUEST_FILENAME} -s [OR]
 RewriteCond %{REQUEST_FILENAME} -l [OR]
 RewriteCond %{REQUEST_FILENAME} -d