This email issue happens very intermittently but none the less, it has become quite the issue here at my workplace.
When a user sends an email from the yahoo domain, sometimes the email will not go through and they eventually receive an NDR.
Out of the 10 emails that are sent from my yahoo account to my corporate account, I received 9 of them with 1 email being returned with the message below.
Yahoo says that are investigating it but its been over a month and I haven't heard back from them.
Any idea how to resolve this issue?
"From: MAILER-DAEMON@yahoo.com <MAILER-DAEMON@yahoo.com>
Subject: Failure Notice
Received: Wednesday, January 9, 2013, 2:42 PM
Sorry, we were unable to deliver your message to the following address.
Mail server for "simex.ca" unreachable for too long
--- Below this line is a copy of the message.
Received: from [18.104.22.168] by nm16.bullet.mail.bf1.yahoo.com with NNFMP; 04 Jan 2013 15:30:57 -0000
Received: from [22.214.171.124] by tm2.bullet.mail.bf1.yahoo.com with NNFMP; 04 Jan 2013 15:30:56 -0000
Received: from [127.0.0.1] by smtp118-mob.biz.mail.bf1.yahoo.com with NNFMP; 04 Jan 2013 15:30:56 -0000
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1357313456; bh=a0tPsQCtTPD7G4BLu1JoV6fPkLsDmRlxuJ8uG4vsKEQ=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Content-Type:Content-Transfer-Encoding:From:Message-Id:Date:To:Mime-Version:X-Mailer; b=BAfdfQbhPqAm3c/4w5A1YPwmNZp7JCGgYycMxk1wfvTYMe2tIr4SGDUgkX9lhElFGKH/eph+V6kNjbRq6M/Myx+Fnqz1G1aL+UIhRqHEv9v5fPsjh/PVTfE/Bxc+QxE+SM0rEWuyM7tXfNELVWaZi+tn+XuPYOkdVzF8LemUsBU=
Received: from [10.0.0.72] (email@example.com with xymcookie)
by smtp118-mob.biz.mail.bf1.yahoo.com with SMTP; 04 Jan 2013 07:30:56 -0800 PST
Content-Type: multipart/mixed; boundary=Apple-Mail-DA89A6F7-A037-4463-B233-3E91C9FFABF4
Date: Fri, 4 Jan 2013 10:30:45 -0500
To: John Nguyen <firstname.lastname@example.org>
Mime-Version: 1.0 (1.0)
X-Mailer: iPhone Mail (10A403)