XCON: MTA Content Conversion Error 4101 with HP Openmail

When you use Microsoft Exchange Server 5.5 Service Pack 1 with HP Openmail, you may experience content conversion problems with the Exchange Message Transfer Agent (MTA) under the following circumstances:

• A message was sent from Exchange Server 5.5 Service Pack 1 to an Openmail user with delivery and read receipts.
• The sender receives the delivery receipt.
• The recipient reads the message.
• The recipient of the original message receives an NDR to their read receipt:
  Message corruption detected.
  MSEXCH:MSExchangeMTA:<sitename>:<servername>

The sender of the original message never receives the read receipt for their message.

The Exchange Server computer will also log a 210 content conversion error with conversion error 4101 when this problem occurs.

The Exchange Server MTA was not handling the read receipt correctly.

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base: The English version of this fix should have the following file attributes or later:

Component: Message Transfer Agent (MTA)

Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.