Subject: Kennst Du Dr. Mabuse?
From: XING Kontaktvorschläge <[email-masked]>
To: Björn Petersen <[email-masked]>
Date: Tue, 14 Sep 2021 12:11:17 +0200
List-Id: <51231231231231231231231232869f58.xing.com>

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* unfortunately:
*
* - xing mailinglists do not have a name in `List-Id:`
*   so we cannot get the name from there
*
* - different senders may use the same `List-Id:`,
*   at least i found that two times,
*   maybe it is a bug on xing's side as most times `List-Id:` differs,
*   however, so we cannot get the name from `From:`.
*
* to avoid chat names as `51231231231231231231231232869f58.xing.com`,
* we detect the hash prefix and strip that;
* as the sender, we have "xing.com" then, which is fine.
*
* that approach should also work for other mailinglist.
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