api gateway reverses address to exchange

[ralphenovell]

For example, if a Groupwise user sends email to an
Exchange user and CCs mmeyers1111@xxxxxxxxx, then no
FUA record will be created and the Exchange user will
see the address as Yahoo.com;mmeyers1111. If the user
then tries to "reply all", the mail will fail to be
delivered to mmeyers1111@xxxxxxxxx

Is there a fix for this?

thanks