On Tue, Apr 13, 2010 at 1:01 AM, Simon Waters <sim...@zynet.net> wrote: > > Your post appears mangled beyond hope of direct assistance.
Are you saying that the message was improperly formatted? >> Remote host said: 554 5.7.1 <b...@myapp.appspot.com>: Relay access denied > > This implies that your server rejected it. So where is the log from your > server? NOQUEUE: reject: RCPT from web81307.mail.mud.yahoo.com[68.142.199.123]: 554 5.7.1 <b...@myapp.appspot.com>: Relay access denied; from=<a-yahoo-u...@yahoo.com> to=<b...@myapp.appspot.com> proto=SMTP helo=<web81307.mail.mud.yahoo.com> > The DNS config you give appears to be a case "CNAME and other" which is a > violation of RFC1034. So fix your DNS and see if things work correctly. Thanks for the pointer. I'll have to read up on this. I remain puzzled as to why the exact same DNS settings for example.org work just fine on mail.example.com. I suspect that if I had mail.example.org, then the server wouldn't work with Yahoo Mail addressed to b...@foo.example.org but would work with b...@foo.example.com. Bob
