Consider using a different format, like maildir. (There is a 'perfect' converter available at http://perfectmaildir.home-dn.net/, of course written in Perl.) Or make it independant from file formats and use IMAP to access the mailbox.

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

In reply to Re^3: Indexing an mbox file by afoken
in thread Indexing an mbox file by oko1

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