[cobalt-users] Mail server issues

["Mustafa Cavcar" <macavcar@xxxxxxxxxxxxxxx>]

Dear Friends,

I am having e-mail sending and receiving issues for a couple of weeks on my
RaQ3 server.

1) Some users of some domains are not able to send or receive e-mails with
other users of the same domain. I need help for the solution of this
problem. E-mails of these domains were working very well until a few weeks
ago, but they are all almost down right now. Let's say, abc@xxxxxxxxxx is
not able to send or receive e-mails from xyz@xxxxxxxxxxx Called Cobalt
technical support, but no solution until now. DNS set-ups for these domains
are all right.

2) Trying to find out what is going on; I looked at

    /var/spool/mail

directory of my box. I found that there are some users which I never
registered them on my server. These are:

    adm
    admin
    gopher
    mail
    pop
    promo

I am not able to see these users through web interface. I understand that
"admin" is the standard server administrator for the Cobalt RaQ3. So, since
I do not see them through my web interface, when I try to set up user
accounts for:

    adm
    gopher
    mail

I am getting "<xxx> is a reserved name message"; so, I suppose these are
system related user accounts. But when I try to set up:

    pop
    promo

I am getting "user <xxx> already exists" message through my web interface. I
have never registered such user accounts like "pop" and "promo". So, I am
suspicious. I need your help on this issue also.

Regards to all of you,

Mustafa Cavcar
macavcar@xxxxxxxxxxxxxxx