Re: =?GB2312?B?udjT2rG+s6fV0MrV0rXO8dSxus2zz9X3tPrA7cnM?=

[Xinwei Yu]

This company modified the "from" field of the 
mail. There is no such email address in the acm
dept. of Caltech. Thanks!

Best,
Xinwei Yu