Insufficient responses for TCP sequencing (3), OS detection may be less accurate
Interesting ports on sd3.mailbank.com (208.49.167.83):
(The 1539 ports scanned but not shown below are in state: closed)
Port       State       Service
1/tcp      filtered    tcpmux                  
21/tcp     open        ftp                     
80/tcp     open        http                    

No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi).
TCP/IP fingerprint:
SInfo(V=2.54BETA22%P=i386-unknown-freebsd4.0%D=6/1%Time=3B175CFB%O=21%C=2)
T1(Resp=Y%DF=Y%W=7F53%ACK=S++%Flags=AS%Ops=MENNTNW)
TSeq(Class=RI%gcd=1%SI=2999DA%TS=100HZ)
TSeq(Class=RI%gcd=1%SI=25F382%TS=100HZ)
T2(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
T1(Resp=Y%DF=Y%W=7F53%ACK=S++%Flags=AS%Ops=MENNTNW)
T3(Resp=Y%DF=Y%W=7F53%ACK=S++%Flags=AS%Ops=MENNTNW)
T2(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
T4(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T3(Resp=Y%DF=Y%W=7F53%ACK=S++%Flags=AS%Ops=MENNTNW)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T4(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T6(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T7(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
PU(Resp=N)
T7(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
PU(Resp=N)



Uptime 24.554 days (since Mon May  7 15:57:18 2001)

# Nmap run completed at Fri Jun  1 05:14:35 2001 -- 1 IP address (1 host up) scanned in 39 seconds