I use Yahoo! web mail, so my mileage probably differs from yours. But Yahoo has gotten very strict on spam, etc., and no problems here with receiving notification. Header:
Code: Select all
Authentication-Results: mta562.mail.mud.yahoo.com from=informaction.com; domainkeys=neutral (no sig); from=informaction.com; dkim=neutral (no sig)
Received: from 188.8.131.52 (EHLO e82-103-134-102s.easyspeedy.dk) (184.108.40.206) by mta562.mail.mud.yahoo.com with SMTP; Sat, 02 May 2009 15:56:54 -0700
Received: (qmail 21906 invoked by uid 89); 2 May 2009 22:56:07 -0000
Received: from unknown (HELO ariel.informaction.com) (127.0.0.1) by ariel.informaction.com with SMTP; 2 May 2009 22:56:07 -0000
I admit to being not that deep into header interpretation, but.... The domainkeys is a Yahoo tool for authenticating as "not forged address" mail either within the Yahoo domain or from cooperating mails that subscribe to Yahoo domain keys. Informaction is clearly its own server, no subscription, but not on a blacklist either ("neutral").
I note the "EHLO" in the top Received vs. HELO later. Perhaps you can explain the significance of this, or is this possibly the source of the error?
I can only guess that including thestandard localhost address 127... indicates origination from Giorgio's machine, correct? And perhaps Yahoo accepts that as the originator, while yours finds this unacceptable?
As said, I'm way outside of my knowledge base here, and welcome any education you care to share. Thanks.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US at an expert level; rv:220.127.116.11) Gecko/20081217 Firefox/18.104.22.168 diehard