On Sun, 22 May 2016 08:36:10 +0200, Florian Pelz wrote: >Yahoo not working is not by any chance a DKIM/DMARC issue like [1]? I don't know, but as already pointed out by the thread 4 month ago. On a few mailing lists Yahoo/Rocketmail addresses could be used, but Yahoo/Rocketmail subscribers don't receive copies of their own mails, anything else works. I'm still subscribed with such an address to https://lists.ubuntu.com/mailman/listinfo/xubuntu-users mailman mailing list. The admin likely could share the mailman settings with you, xubuntu-users-owner@xxxxxxxxxxxxxxxx . Regards, Ralf