Mail Server - Sendmail + IPOP3

["Gavin Mellors" <gavinjm ComparexAfrica co za>]

Hi All

I am managing a mail server (midterm newbie).
Server is an Intel Brownsville m/board, 256K Ram.
Clients all using O/Express to get mail of POP server.

Previous version of Redhat 5.2 and 7.0; had a special user group "popuser".
When running userconf I could create my users as "mail only" accounts.
when adding accounts I could select this group as there default group.
Mail "was delivered to there folders" wich they could access from their
Win98 w/stations using
outlook express.

The popuser group is'nt present in Linux 8.0 ??

I created a popuser group, and added my users to this group as there default
group.

My users are not receiving mail??. Postmaster(me) is getting error reports :
MAIL UNDELIVERABLE ... reason 553 5.3.5 system config error.

Mail is leaving server. Not being recieved by my users.

I am finding the transition from RedHat 5.2 and Redhat 7.0 to version 8.0
extremely frustrating.
...up2date spends +- hour getting RPMS, and then bombs out with bad CRC,
(64k leased diginet line connection).
...IPOP3 service as registered with XINETD is "off" by default.(Thought I
had solved my prob. when I        found this one.
....The command line network config tools, well where are they. I have
edited (/etc/network) to set
    up address details. (From within XWindows the network config is easy).
What happened to "netconf"


Regards
Gavin Mellors