Exim IP Rotation

Hi, I need someone who can teach me and share the process document of how to do the IP rotation process in Exim (cPanel). Not with the following IP rotation script since it not working. interface = [login to view URL]${eval:${substr{-2}{1}{$tod_zulu}}%9+1} Even if the above code will work, we can not add the non seuqntail IP in it. If I will have random IP alloted by hosting providers and I need to do the IP rotation so I need a way for that. It could be a bash script or somthing which you can offer to do this job Done. IP should rotate like as following. Mail one with one IP and second with 2nd IP and so on in a round robin (circular manner). It will be better if we can put some delay in between so avoid the further blocking. Thanks