This is a delivery status notification, automatically generated by MTA im2.duc.auburn.edu on Mon, 07 Jul 2008 05:21:09 -0500 Regarding recipient(s) : iliya@eng.auburn.edu,alexie(a)eng.auburn.edu Delivery status : Failed. Message could not be delivered to domain <eng.auburn.edu> .Failed while initiating the protocol. <[(&#39;iliya(a)eng.auburn.edu&#39;, 550, '5.1.1 <iliya@eng.auburn.edu>... User unknown'), (&#39;alexie(a)eng.auburn.edu&#39;, 550, '5.1.1 <alexie@eng.auburn.edu>... User unknown')]> MTA Response :550 The original message headers are included as attachment.