Ok the problem is that the script seems to randomly empty the mailbox files (on the BSD box) instead of just removing single/multiple lines of garbage. Sometimes it will work on a mailbox, sometimes it won't... I haven't seen any pattern to it yet.
Haven't bothererd with the file opening checking yet because I'm still just testing. It's a contained environment that I'm testing this in, not the actual mailboxes.
The code should account for multiple lines of garbage, the while loop will read in a line at a time of the file until the file is either empty or untill the index of "From" is 0.
The test I'm running on BSD (errors) is exactly the same as the one that works running on my Debian (no errors) machine. I'm only running it on about 10 mailboxes, with a mixture of corrupted and non corrupted files.
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