Network access

[John French]

I have been setting up a home file, print and e-mail server on 8.04 
Server (64 bit (AMD)), and I would appreciate help with a couple of 
questions.

1. I believe I have Samba, Postfix and Dovecot configured about right, 
but I am getting persistent refusals when I try to connect from Windows 
machines. I get "Enter Network password", but when I enter my user name 
and password (which are the same for Linux and Windows), I get 
"Incorrect password or unknown username". I have tried deleting my user 
id on th server, and re-entering it, using my wife's id, and so forth, 
without success. Can it have to do with /etc/network/interfaces ?  I 
have tried, as far as possible, not to disturb the defaults, but I have 
set a static IP address, and have put that into /etc/network/interfaces.

2. I have wondered if Postfix is a bit OTT. A knowledgeable contributor 
to the list has recommended masqmail, but it seems to be currently 
unsupported. Any advice ?

John French