e-mail

I have a Drupal 7 site with a custom node type with a custom attachment field. After a (kind of this custom) node has been published, I got an e-mail with the help of Rules module. I would like to set up an another rule, which sends me an another e-mail, when somebody edits this node and uploads an attachment. Inside the mail, I want to see the full url to the uploaded file.

After a several test, I'm not able to insert the full path to the uploaded file. The [node:field-attachment:file] doesn't work at all. I'm able to insert (manually) the url where this file resides, but after I can not insert the file name (so even the filename would be enough for me).

So with the [node:field-attachment:file] I got an error: Fatal error: Call to a member function value() on a non-object in /home/xxx/sites/all/modules/entity/entity_token.tokens.inc on line 297.

Estoy interesado en lograr que me aparezca de manera predeterminada una dirección de correo electrónico cuando un administrador genera una nueva cuenta de usuario. Es decir, que el administrador que genera una nueva cuenta se encuentre un valor por defecto en el campo de " E-Mail". Por ejemplo, si el usuario se llama JUAN LOPEZ que el valor del campo E-Mail predeterminado sea juan.lopez@gmail.com.
Si alguien me puede guiar en como lograr algo similar se lo agradeceré.