RFR: 1843: mlbridge bot bridges emails generated by itself [v3]

[Guoxiong Li]

On Fri, 17 Mar 2023 13:42:27 GMT, Zhao Song <zsong at openjdk.org> wrote:

>>> Yes, but it's only the Skara project, so I was ok with living with it.
>> 
>> After thinking more, I am OK with it too. It can also verify and confirm my thought about the hosts in this patch.
>
> Another option for us is that we use double filter right now and after 14 days, we revert it back to only filter `authenticatedUrl()`. In this way, the polluted Skara emails wouldn't be bridged.

Seems to only influence several PRs, so I don't want to complicate the flow.

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PR Review Comment: https://git.openjdk.org/skara/pull/1485#discussion_r1140271614