smtp check

[Stef Coene]

Hi,

I get this when I check a smtp server:
Address=195.86.128.62:25, open=1, res=0, err=0, connecttime=0.002863, 
totaltime=1.153169, banner='501 Syntax error in parameters or arguments
' (45 bytes)

Other smtp servers are working fine.  This is the smtp server of the ISP.

How can I find out what the exact conversation is between my hobbit server and 
the smtp server ?

Stef