[Exim] mailq question

This is a multi-part message in MIME format.
--
[ Picked text/plain from multipart/alternative ]
Dear list,

i have following in my exim.conf

ignore_bounce_errors_after = 1d
timeout_frozen_after = 1d

the mailq still contain unsent mail up to 4 days, but the frozen stop after 1day, is there any option to limit the unsent mail to only 1 day ?

thanks
--