I can't receive e-mails

[Mario Jorge Nunes Filipe <mjnf@neptuno.sc.uevora.pt>]

Hi

I've been upgrading from one older machine to a new one!

I am maintaing the same IP addr and hostname. I installed sendmail and
then reconfigures it just like it was on the older machine!

Now i can send mails but i can't receive them. Whenever i send an email
to me (mjnf@neptuno.sc.uevora.pt) it creates the spool file with 0
bytes. If i hand-remove it it creates it again but it never writes
anything in it.

Can someone please help.
-- 
        Mario Filipe 
        mjnf@uevora.pt
        http://neptuno.sc.uevora.pt/~mjnf