MessageID's again...

    Odd problem. While parsing a 3298 messages archive (over 8Mb), I saw these errors come up (lines wrapped):

message 2006:
  Message-ID collision,
'99092122564200.00677_at_luca.home'

  already present - discarding message.
message 2040:
  Message-ID collision,
'3.0.6.32.19990921140255.00940180_at_mail.ignitionstate.com'
  already present - discarding message.
message 2065:
  Message-ID collision,
'3.0.6.32.19990921140255.00940180_at_mail.ignitionstate.com'
  already present - discarding message.
message 2346:
  Message-ID collision,
'37EADD6F.5B16D817_at_qgl.org' already present - discarding message.
message 2392:
  Message-ID collision,
'4.1.19990924163420.00aaf4a0_at_stud-iss2.cs.fh-nuernberg.de'
  already present - discarding message.
message 2519:
  Message-ID collision,
'3.0.6.32.19990924180018.00a009f0_at_mail.ignitionstate.com'
  already present - discarding message.

    When I went back and checked on the archive, sure enough. These messages have identical MessageID's on them in the headers, BUT, the messages are different. They're not duplicates. So, a) how in the world can one get email with identical MessageID's in the header (spanned across several days sometimes), and b) how in the world to solve this problem now?

    Notice how message 2040 and 2064 have the same ID already. The messages right before them (2039 and 2063) also have the same ID, which is what hypermail read first, then came across the same ID for a second time, and pitched the message.

    AMK4

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