Re: [Mailman-Users] Emails from yahoo members, are getting rejected by yahoo, "Service Unavailable".

2014-04-14 Thread Joe Sniderman
h Yahoo's, thus > breaking DMARC) > > Either an SPF failure or a DKIM failure will cause a DMARC rejection > if p=reject. Even if that were the case, which it is not, SPF should pass - since typically the list is the envelope sender. -- Joe Sniderman ---

Re: [Mailman-Users] Giving away the secrets of 99.3% email delivery

2012-05-13 Thread Joe Sniderman
hat your mailman instance adds a "Sender" header that matches the list-name (or a verpified version thereof) to outgoing messages, adding something like: SenderHeaders Sender,From to your opendkim.conf *should* resolve the problem. FWIW, making that config change resolved the iss