I did not find this in manual on samba.org, or maybe it was there, somewhere.

I have to set up small LAN, linux server (debian) and 4 hosts (win XP).
The provider of broadband will provide the email addresses as well, so I have this, at least.

I have to create about 20 user accounts, which I can manage according to manual. But then I have to assure that anyone who gets to the host PC with win XP will put in his username and password and his settings and email will appear. How does MS Outlook find all the settings and download the email of the logged user? Which clients or programmes to install on samba and which config files to set? I will work out how to set them from man pages, just don't know which. Thanks for help.

Samba won't necessarily have anything to do with email. i'm not that up on Outlook, but AFAIK XP uses a MAPI setting within the registry which defines where the email servers are. outlokok then just authenticates to that server using the logon information. so Samba would not play a part in this at all.

Alternatively though you may be wantnig to use a home directory shared through samba and mounted under XP at login time, which is perfectly possibile, and generally a jolly good idea, especially when i'd guess your users are moving aronud between machines. in this scenario you'd keep all user setttings for Outlook on that samba share, and so outlook which is configured to look for outlook data on the home drive will find it in the same place every time, but implictly for the specific user.