🚀 go-pugleaf

When i configured my workstaion, i called it
blore as it is named presently and i want to give it an alias h11500 so that
i can recv mail both at ravi@blore.b30b.ingr.com and ravi@h11500.b30.ingr.com
Any mail that is sent from a node on the local net to h11500,reaches my 
workstation and is bounced  back with the following error. 
"
    HELO blore.b30.ingr.com
<<< 553 blore.b30.ingr.com host name configuration error
554 <ravi@h11500... Service unavailable
   ----- Unsent message follows -----
" 
I have the alias h11500 in the same line(as blore ) in the /etc/hosts file.
Can my sendmail be configured such that, it can accept mail that are
are meant for the alias?  or some entry in some file?
note, this happens only with mail that are on the local network that can reach
my machine without going through the mailhost. All the mail meant for h11500
that come thru my mailhost, get substituted with blore as i have added the
alias h11500 on my mailhost succesfully fot it to substitute mail from ext. 
nodes with blore.
So for eg. if you send a mail to h11500, it will reach me but the guy in the
 next office will get the above error.
 
thanks