"help@posterous.uservoice.com rejected a message that claimed an envelope sender address of ralph@[elided].
"help@posterous.uservoice.com received a message from getfile.posterous.com (184.106.20.101) that claimed an envelope sender address of ralph@[elided].
"However, the domain [elided] has declared using SPF that it does not send mail through getfile.posterous.com (184.106.20.101). That is why the message was rejected."
I'm happy with my SPF definitions; looks like an internal posterous problem. Can someone who knows the posterous mob give them a bell; they may appreciate the wake-up. :-) Thanks.