On 15/07/2016 17:46, Van Horn, David wrote: > I missed the email that describes the problem, what's going on? Possibly this combination of headers in some of Peter's mails, where a Yahoo email address is used but does not appear to be sent through Yahoo's servers: ** Received: from plpeter2006 by 188-25-231-7.rdsnet.ro with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 06 Jul 2016 20:14:30 +0200 From: Peter ** This likely fails SPF [1] and other tests setup by mail providers such as Gmail to combat spam. Peter - perhaps you are sending some messages from your own mailserver using your Yahoo mail address? The list server will likely also affect spam scanning, because Gmail receives an email from @yahoo.com that doesn't come directly from Yahoo. David 1 - https://en.wikipedia.org/wiki/Sender_Policy_Framework --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .