Notes Client Displaying AltCopyTo in cc field

A user has recieved an email that he was cc.d on his inbox and when he opens the message, his name does not appear in the cc field. A different name appears. On stripping the message header, I found out that the “AltCopyTo” is the one being displayed instead of the users name.

Anyone with any clue as to why this is happening and how we can resolve this.

I have pasted the header info below:

SendTo: CN=Patrick Williams/O=xyz

CopyTo: CN=Barry Bonds/O=xyz

$NameLanguageTags: en

InetSendTo: Patrick_Williams@wyz.com

InetCopyTo: barry_bonds@xyz.com

AltSendTo: CN=Patrick Williams/O=xyz

AltCopyTo: patrick_williamst@xyz.com

$StorageTo: .

$StorageCc: .

$Mailer: Lotus Notes Release 6.5.1 January 21, 2004

$MessageID: OF59147FAD.4052262C-ON85257035.00624931-85257035.00628D64@LocalDomain

From: CN=Greg Sams/O=xyz