sendmail

[Nina Pham]

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 at barracua.gibbons.com, but fail on nina at barracuda.gibbonsmail.com, 
and nina at gibbonsmail.com.(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 at gibbonsmail.com, nina at barracuda.gibbons.com. Even though yahoo 
account can receive the mail from nina at barracuda.gibbons.com.
Any idea?

Nina