I can't figure out how part of name resolution
works when logging onto POP3. Currently, if I don't
put an entry in named.hosts called "mydomain.com."
(with the period at the end) that resolves to my
mail server's IP address, I can't log onto POP3 as
firstname.lastname@example.org. But at the same time it seems
odd that mydomain.com must resolve strictly to the
mail server. And, in examples showing how to set up
a named database, I've never seen a hosts entry
with just the domain name.
Is this domain resolution a function of DNS, or do
I have something else screwed up?