In spanish we are somewhat used to adopt international words, and make them our own. So, in a very informal scenario, one could translate "email this to John" as "mailear esto a John", as the ending "ar" (as well as "ir" and "er") most of the times denotates the word is a verb. A more formal situation would be to translate the action, rather than the protocol, so one could type "escribir esto a John", wich in turns, tranlsates to "Write this to John"