in reply to Getmail perl script
I'm with sauveant on this one. Why not use Mail::POPClient or Net::POP3? And you surely should look at one of them for clues on handling POP3 protocol stuff.
A POP3 box is supposed to return a "UIDL" Unique IDentifier for each message. You could use that as part of the filename. You really want Net::POP3.
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