Hi Luke, (if you want an answer from me, keep me CC'ed as I'm not subscribed to this mailing list)
All three links you found are basically correct. About redmine: If you have any account at a service which is run by The Document Foundation (TDF) then you can use the same credentials as we have finally a "Single-Sign-On"-server. Back to the original topic: Basically this happens because especially Yahoo was modifying their mail servers a few years (?) and thus do now enforce the "DKIM" protocol, sadly a bit too harsch (so removing mails instead of warning) which basically kills all mailing lists. So saying: if a user posts to a mailing address from a Yahoo; the mailing list software correctly forwards this mail to everybody subscribed, but sadly some email providers do check if the so-called envelope to the mail address fits to the original sender and if the enveloper is allowed to. There is nothing TDF can do here. As an example I do know: The Apache Foundation changed the Address from Yahoo.com to Yahoo.com.INVALID to suppress such behaviors. Hope this explains a bit this situation. Best regards, Dennis Roczek (part of the admin team) -- Sent from: http://document-foundation-mail-archive.969070.n3.nabble.com/Documentation-f1645240.html -- To unsubscribe e-mail to: documentation+unsubscr...@global.libreoffice.org Problems? https://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: https://wiki.documentfoundation.org/Netiquette List archive: https://listarchives.libreoffice.org/global/documentation/ Privacy Policy: https://www.documentfoundation.org/privacy