* @see email_set_message_sent_cb()
* @see email_unset_message_sent_cb()
*/
-typedef void (* email_message_sent_cb)(email_h email, email_sending_e result, void *user_data);
+typedef void (*email_message_sent_cb)(email_h email, email_sending_e result, void *user_data);
/**
* @brief Registers a callback function to be invoked when an email message is sent.