Per https://meta.wikimedia.org/wiki/Mailing_lists/Wikimedia_Announce, WikimediaAnnounce-l should be automatically forwarded to Wikimedia-l. This functionality breaks periodically, and appears to have broken again. Neither of Lena's announcements about the metrics meeting that were sent to the announcements email list (archived at https://lists.wikimedia.org/pipermail/wikimediaannounce-l/2016-October/date.html) appear to have been forwarded to Wikimedia-l (see https://lists.wikimedia.org/pipermail/wikimedia-l/2016-October/date.html).