Troubleshooting email delivery for new domains
Posted on 2011-04-20
Problem receiving email on two newly registered domains
Internal Exchange 2003 server sp2
Exchange hosts 6 existing domains for email (5 external) - all working fine
New domain added under Recipient Policies and updated
Internal PineApp unit for filtering email
2 new domains added to accept email delivery
Domainsatcost is registrar and is set to use 3rd party hosting:
Primus (ISP) is doing DNS services and mail relay for both new domains
Copy of NDR from an email sent from an @rogers.com account
Sorry, we were unable to deliver your message to the following address.
Remote host said: 553 sorry, relay denied. [RCPT_TO]
--- Below this line is a copy of the message.
Received: from [188.8.131.52] by nm2.access.bullet.mail.mud.yahoo.com with NNFMP; 20 Apr 2011 16:14:41 -0000
Received: from [184.108.40.206] by tm9.access.bullet.mail.mud.yahoo.com with NNFMP; 20 Apr 2011 16:14:41 -0000
Received: from [127.0.0.1] by omp1014.access.mail.mud.yahoo.com with NNFMP; 20 Apr 2011 16:14:41 -0000
Received: (qmail 91120 invoked by uid 60001); 20 Apr 2011 16:14:40 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rogers.com; s=s1024; t=1303316080; bh=ZEIj10JXZWR8DoOqQG4Zl8UUB4ZPNg8nquje8wAAhHI=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=ab8d5G0+2NPfTzuvPB4NeZTR+gA/20lZ/cRVPlFT1Cbqzn7fNytLDmjXDuGT17efYXjiwnuGDcyWl/YdCLG9mDqKyon6zA0jZZ4kZeNWPEaFUni62fvNnb1BpQwAQ83em+1ztaJx6apPDPF33PTN+sTgIPg+2hzZNNT/2rnjed0=
DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws;
Received: from [220.127.116.11] by web88208.mail.re2.yahoo.com via HTTP; Wed, 20 Apr 2011 09:14:40 PDT
X-Mailer: YahooMailClassic/12.0.2 YahooMailWebService/0.8.109.295617
Date: Wed, 20 Apr 2011 09:14:40 -0700 (PDT)
If I read the NDR correctly the email is making it to our public IP (18.104.22.168) and getting rejected by either our Exchange server or the Pineapp spam unit. I've gone through both with a fine-toothed comb and can't find any problems, however this stuff is not my forte and I'm probably missing something...
Happy to provide more info.