Archived from groups: microsoft.public.win2000.dns (
More info?)
Dear Martin
Thx for your so long solution,
Best regards
Bill from China
"Herb Martin" <news@LearnQuick.com> дÈëÓʼþ
news:eP5H1WS0EHA.2040@tk2msftngp13.phx.gbl...
> "Bill" <num1@21cn.com> wrote in message
> news:uLfgmKR0EHA.1652@TK2MSFTNGP11.phx.gbl...
> > Dear All
> >
> > If POP server and SMTP server are different server,
> > so the DNS MX record shoud point to POP server or SMTP server?
>
> SMTP.
>
> SMTP are your inbound servers FROM OTHER EMAIL servers.
>
> (They are also the outbound email servers for your clients and
> TO other email systems.)
>
> Pop servers are inbound email servers for YOUR CLIENTS.
>
> Frequently they are on the same machine so many people have
> successfully exchanged the two in client configuration or MX
> records and gotten lucky.
>
> Frequently the Pop server is on the SMTP server with the lowest
> numeric MX record (high priority) and another SMTP server is
> the backup SMTP server.
>
> Reason: The POP server usually needs to be on a single server
> since some clients can only configure on POP server and the
> client machines much in any case find the POP server where their
> mail is physically loaded.
>
> In this case, the second SMTP server is usually setup to merely
> accept the email (from others) and hold it, until the first SMTP
> server with the POP server requests that email from the second
> SMTP server.
>
> Since they run in conjunction it is easy for new mail admins to
> get them confused.
>
> Mnemonic: POP servers are like the post office BOXES at you
> local P.O. (or even like you mailbox in front of you house) where
> you must always visit the same location in order to send mail
> from a client machine.
>
> SMTP servers are like the P.O. DESK where you can go to any
> P.O. -- even while traveling --- and send you mail. In fact, when
> traveling you should prefer the CLOSEST P.O. <grin> and use
> that one (in the same city, part of town.)
>
> The analogy breaks down when you recognize that your home
> mailbox serves both purposes which is perhaps a good reason
> for sticking to the analogy of the P.O. Boxes IN a P.O.
>
> --
> Herb Martin
>
>
> >
> > Looking for your help!
> >
> > Bill
> >
> >
>
>
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