On 11/15/2010 10:22 AM, Daniel McDonald wrote: > I send from my phone just fine - Auth on the submission port to my > home servers, then SPF matches the policy just fine.
Dan, You've made many good points. Not trying to take away from those. However, in spite of what you said about forwarding being true, there are ALSO many *common* scenarios where the forwarding isn't compatible with SPF. For example, many people have blackberry phones through their mobile provider and these don't send via one's e-mail account. Instead, they send/receive via a separate e-mail account... specifically, the account hosted on the mobile provider's blackberry server. But the user often wants to set a "from" address as being their regular business e-mail address so that they then get replies to blackberry-sent messages to BOTH their desktop computers and their blackberry. (otherwise, they'd only get the reply on their blackberry unit) Other examples include situations where someone auto-forwards messages from an old e-mail account to a new one. Or when someone sends a message via some type of social network... or even just a messageboard... and they want the "from" address to be their own address. (referring to legitimate situations here, not spam) But the sending server couldn't possibly be sending from an IP that the mail admin could have anticipated when setting up the SPF record. ...I'm sure there are others I haven't thought about! -- Rob McEwen http://dnsbl.invaluement.com/ r...@invaluement.com +1 (478) 475-9032
