The "FETCH (BODYSTRUCTURE)" command returns a corrupted file name of an email message attachment on an Exchange Server 2010 computer

Applies to: Exchange Server 2010 EnterpriseExchange Server 2010 Standard

Symptoms


Consider the following scenario. You connect to a Microsoft Exchange Server 2010 Client Access server by using an Internet Message Access Protocol (IMAP) client. You use the FETCH (BODYSTRUCTURE) command to query information about an attachment of an email message. In this scenario, the file name of the attachment may contain the "?" character.

Cause


This issue occurs because the file name of the attachment contains double-byte character set (DBCS) characters. Exchange Server 2010 does not return a RFC compatible response when the file name of an attachment contains DBCS characters.

Resolution


To resolve this issue, install the following update rollup:
2425179 Description of Update Rollup 2 for Exchange Server 2010 Service Pack 1

Status


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.