sendmail

[Nina Pham <nina@xxxxxxxxxxx>]

Hi I setup the email server on my FC1 system. I have problem sending and 
receiving mail. Please bare with me, I need to explain the problem. I 
have one email server from my work with is working fine( gibbons.com). 
And I try setup the new email server which I name it 
barracuda.gibbons.com. I also name it as a alias gibbonsmail.com. The 
alias gibbonsmail.com never works. I did 3 things here.
   1. I email from my new server(barracuda.gibbons.com) to my yahoo 
account, my gibbons.com(the working server), it gets through. The 
receivers receive the email. I send to my hotmail account, don't know 
what happen there, my hotmail account never receives the email, and 
there's no Mail Delivery Subsystem send back to the sender. I send tomy 
sbcglobal.net account, it fails, the Mail Deliver Subsystem got back.
   2. I email from my working server. It successfully sent to 
nina@xxxxxxxxxxxxxxxxxxxx, but fail on nina@xxxxxxxxxxxxxxxxxxxxxxxxx, 
and nina@xxxxxxxxxxxxxxxx(Delivery subsystem got back)
   3. I email from my yahoo account  it failed all( the Deliver 
Subsystem got back). The receivers are nina.barracuda.gibbonsmail.com, 
nina@xxxxxxxxxxxxxxx, nina@xxxxxxxxxxxxxxxxxxxxxx Even though yahoo 
account can receive the mail from nina@xxxxxxxxxxxxxxxxxxxxxx
Any idea?

Nina