2015-02-12 After years of tranquility, the second evangelist appeared in my surrounding within two weeks. [0] I do care a lot for positive discussions. Preachers are usually destructive and annoying in my eyes. It's not because of their topics (although they are seldom technical or scientific) but because of their behavior: They don't treat others as they'd be on the same level as themselves. Don't change List-IDs of mailing lists if you change the list's address! See RFC 2919: [1] 4. Persistence of List Identifiers Although the list identifier MAY be changed by the mailing list administrator this is not desirable. (Note that there is no disadvantage to changing the description portion of the List-Id header.) A MUA may not recognize the change to the list identifier because the MUA SHOULD treat a different list identifier as a different list. As such the mailing list administrator SHOULD avoid changing the list identifier even when the host serving the list changes. On the other hand, transitioning from an informal unmanaged-list-id- namespace to a domain namespace is an acceptable reason to change the list identifier. Also if the focus of the list changes sufficiently the administrator may wish to retire the previous list and its associated identifier to start a new list reflecting the new focus. [0] https://debianforum.de/forum/viewtopic.php?f=14&t=153861 [1] https://www.ietf.org/rfc/rfc2919.txt http://marmaro.de/lue/ markus schnalke