My company recently merged with another that uses MS Exchange. (domain names changed to protect the innocent) The entire company is taking on the appearance, from an email domain perspective, of adata.com - the company with Exchange. All of the employees from my company, mktm.com, had accounts created at adata.com and mail is just forwarded to mktm.com. Now, it appears that 99% of the time there is no problem with this, but there are a few specific companies that are getting delivery failures when trying to send emails to some of our employees at their new email addresses. If those same people send an email to the same employees to their “old” email address the messages are delivered properly. I’ve searched high and low for a specific answer but haven’t come up with anything concrete yet. I’ve seen info about 8BITMIME and so forth, but no real solutions.
Here is a copy of one of the delivery failures that we’re seeing:
This is an automatically generated Delivery Status Notification.
Delivery to the following recipients failed.
puser@mktm.com
Original-Envelope-Id: 0JD0002AJ7PB5110@d1-sfbay-09.sun.com
Reporting-MTA: dns;smtp.adata.com
Received-From-MTA: dns;nwk-ea-fw-1.sun.com
Arrival-Date: Mon, 5 Feb 2007 14:05:43 -0500
Final-Recipient: rfc822;puser@mktm.com
Action: failed
Status: 5.6.1
Diagnostic-Code: smtp;554 5.6.1 Body type not supported by Remote Host