Default email address

src/freedombone-base-email

@@ -1649,6 +1649,8 @@ function install_email {
     read_config_param MY_EMAIL_ADDRESS
     read_config_param DH_KEYLENGTH
 
+    MY_EMAIL_ADDRESS=${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}
+
     install_email_basic
     #install_email_with_tor