Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain yahoo.com by mta5.am0.yahoodns.net. [98.138.112.33].
The error that the other server returned was:
554 delivery error: dd This user doesn't have a yahoo.com account (retterlutz@yahoo.com) [-5] - mta1147.mail.ne1.yahoo.com
I have reserved your request. Please email me from a normal email to retterlutz@yahoo.com with your sage id included. If your request is for a unit to be shipped out of the US I will get back with you regarding shipping costs. If within the US the cost is $150 each plus $16 s&h each, and I will contact you when I am ready to start shipping them out. Thanks!