Please read How (Not) To Ask A Question, particularly as providing your script would be incredibly invaluable in understanding/replicating your issue.
Seeing as there are carriage returns sitting on the response lines, I would see that as a potential cause. I looked through the source for Mail::POP3Client and noted an undocumented key 'STRIPCR' commented with "# Macs seem to leave CR's or LF's sitting on the socket. This # removes them." Perhaps you could try setting $o->{STRIPCR} = 1 after you call the constructor? If this works, I would suggest submitting a bug report.
In reply to Re: POP3Client and dots
by kennethk
in thread POP3Client and dots
by lawtonca
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