=markus --> =mike

=markus/$add/=markus$($msg)$(!1234)

=markus$($msg)$(!1234)/$is()/=mike

=markus$($msg)$(!1234)$!($t)/!/(data:,2012-06-15T09:11:00Z)

=markus$($msg)$(!1234)$do/$add/(=mike+inbox!1/!/(data:;base64,SGFwcHkgQmlydGhkYXkh))

(I know you're not actually using =mike, sorry..)