I couldn't get the perl code above to work right, so I kept searching and I found the one on the web site below, It seems to work great! It removed 2400 duplicates from a 200MB mbox file. It also automatically creates a backup for you. www.wdr1.com/hacks/mbox-dedup.pl

In reply to Re^3: Remove Duplicates from a mbox file by Anonymous Monk
in thread Remove Duplicates from a mbox file by coolmichael

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