[Gllug] mail servers / pop3

[Paul Brazier]

> > Also, what recommendations do people have for pop3 servers? 
> I could only
> > find 3: Cyrus, Courier & Qpopper.
> > I went for Qpopper because it seemed the simplest and it 
> seems to work
> > OK, though I couldn't find rpms and had to install from source.
> I just use Washington Univ imap/ipop daemon that comes as 
> default with most 
> distros. But I don't need anything more than this. Haven't 
> investigated the 
> others.

I might go for this instead - I didn't find it originally because it's
in the "imap" rpm.

> > I presume big companies have a separate machine for each 
> server so the
> > web server *is* called "www", the pop3 server called "pop3" etc.
> You should be able to set up aliases with your dns hoster (I 
> assume your isp 
> is hosting dns for your domain) such that mail.bar.com and 
> pop3.bar.com or 
> relay.bar.com or whatever actually resolve to foo.bar.com. 
> Actually, that is 
> exactly what is happening with www.bar.com (www is always, I 
> think, an alias 
> to a real name in dns)

I'm still not totally sure how DNS works. I've got a standalone server
which runs its own caching nameserver.
Does this mean that any DNS queries for *.bar.com will come to me? And
then my nameserver is "authoritative" for the ".bar.com" domain? So I
can then do all of the resolving of mail.bar.com, www.mail.com etc,
myself?

Or are these still all resolved by a higher level DNS?


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