Oversized MBOX File Slowing Everything Down – Any Way to Split It?

Hi everybody,

I have got a huge MBOX file that’s making my email client crawl. I just want to split it into smaller, manageable files without messing up the data. Then, i found an mbox splitter tool which says to split MBOX files by size, date, or folder while preserving integrity. Has anyone used such a tool? Wondering how well it handles large volumes and if it really keeps things intact.