Insufficient responses for TCP sequencing (3), OS detection may be less accurate
Interesting ports on  (210.12.4.65):
(The 1533 ports scanned but not shown below are in state: closed)
Port       State       Service
25/tcp     open        smtp                    
80/tcp     open        http                    
106/tcp    open        pop3pw                  
110/tcp    open        pop-3                   
135/tcp    open        loc-srv                 
139/tcp    open        netbios-ssn             
143/tcp    open        imap2                   
389/tcp    open        ldap                    
443/tcp    open        https                   

Remote OS guesses: Windows NT4 / Win95 / Win98, Microsoft NT 4.0 Server SP5 + 2047 Hotfixes

# Nmap run completed at Tue Jun  5 21:44:05 2001 -- 1 IP address (1 host up) scanned in 52 seconds