scheduled

Hello everybody i am using postie plugin to run a announcment system in my website postie collecting emails from a general mail box but mails are forwarded to this box. postie sending nearly all the posts as pending scheduled to post after a few monts or sometimes weeks anyone know how can i post all the posts intime. I read a solution here i edited funcitons php and it worked but whenever an update comes it dies. what is the problem about dates and times on postie.

https://ww.wp.xz.cn/plugins/postie/