Hi, Is this the cause of this xwiki sympa mail that I receive regulary? -------- <<Your membership in the mailing list users has been disabled due to excessive bounces The last bounce received from you was dated 03-Nov-2016. You will not get any more messages from this list until you re-enable your membership. You will receive 3 more reminders like this before your membership in the list is deleted. To re-enable your membership, you can simply respond to this message (leaving the Subject: line intact), or visit the confirmation page at http://lists.xwiki.org/mailman/confirm/users/xxxxxxxxxxx You can also visit your membership page at http://lists.xwiki.org/mailman/options/users/xxxxxxxxxxxxxxxx On your membership page, you can change various delivery options such as your email address and whether you get digests or not. As a reminder, your membership password isX>> -------------------------------------------- En date de : Mer 2.11.16, Vincent Massol &lt;vincent(a)massol.net&gt; a écrit : Objet: [xwiki-users] Lots of disabled Yahoo email addresses on the xwiki.org lists À: "XWiki Users" &lt;users(a)xwiki.org&gt; Date: Mercredi 2 novembre 2016, 12h57 Hi everyone, Just to let you know that on the 28th of October, there were 234 members of the xwiki users list who’ve been automatically disabled (ie they’re not going to receive mails). This is apparently caused by a change in Yahoo’s email policy: &lt;gumush(a)gmail.com&gt;om>: host gmail-smtp-in.l.google.com[74.125.133.27] said:    550-5.7.1 Unauthenticated email from yahoo.com.br is not accepted due to    550-5.7.1 domain's DMARC policy. Please contact the administrator of    550-5.7.1 yahoo.com.br domain if this was a legitimate mail. Please visit    550-5.7.1  https://support.google.com/mail/answer/2451690 to learn about    the 550 5.7.1 DMARC initiative. o3si17254181wjx.109 - gsmtp (in reply to    end of DATA command) So if you’re in that case, please contact Yahoo as mentioned in the message above. Thanks -Vincent _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users