RFR: Parse older conversations, but only the most recent messages

[Erik Helin]

On Thu, 5 Mar 2020 14:24:30 GMT, Robin Westberg <rwestberg at openjdk.org> wrote:

> Hi all,
> 
> Please review this small change that allows the mailing list bridge to parse older conversations, but filters out
> individual old messages. This will allow bridging of conversations that are longer than 60 days, but still avoids
> unnecessary checking for already bridged messages.  Best regards,
> Robin

Looks good!

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Marked as reviewed by ehelin (Reviewer).

PR: https://git.openjdk.java.net/skara/pull/498