Switching from ISP hosted e-mail to self hosted

I am running SBS 2000, and I want to switch Exchange 2000 from ISP hosted
e-mail to hosting it on our server. All our users already have SMTP address
and their own e-mail boxes. Currently, incoming e-mail goes to a global pop3
account at the ISP, which exchange picks up every 15 minutes. Outgoing
e-mail goes to the ISP's SMTP server, which is listed in Exchange in the
SmallBusiness SMTP Connector.

In order to get everything set up for hosting internally, I will be having
the ISP change the MX records to point to our server instead of theirs so
that the incoming mail will be routed here. Other than that, I am wondering
what I should do about the SmallBusiness SMTP Connector. Should I delete
that connector entirely? Should I set it to "use DNS for mail delivery"? I
was thinking that if I use DNS for mail delivery, the server will still send
through the ISP's mail server. I really wanted to be able to use Exchange as
its own SMTP server. Any thoughts on what I need to do to make sure Exchange
is acting as it's own SMTP server for the outgoing e-mail?

Also, since the ISP (who hosts our domain) will have MX records pointing to
us for e-mail, do I need to enter MX records in my DNS server internally? I
have two ISPs that I will be using concurrently (we have two DSL
connections), each with it's own static IP addess. I am planning to have the
ISP enter MX records for both possible IP adresses.

Thanks for any help you can provide,
~Kyle

Javier
Fri Sep 23 18:10:15 CDT 2005

I have answered the questions about creating the MX records on your other
post. However, for info on switching from POP3 to SMTP check this out:
http://msmvps.com/javier/archive/2004/10/25/16621.aspx

About the SMTP connector... leave there. If you want to switch to DNS
delivery you can if you have a static IP address and you ask your ISP to
create PTR records for both of your IPs. For more information about using
DNS or a Smarthost, check this out:
http://www.sbslinks.com/DNS_Smarthost.htm

Cheers,

--
Javier [SBS MVP]
www.msmvps.com/javier
<< SBS ROCKS !!! >>

"Kyle Naeve" <Kyle Naeve@discussions.microsoft.com> wrote in message
news:553DB64E-C746-4A78-89D3-014F9B428BA5@microsoft.com...
>I am running SBS 2000, and I want to switch Exchange 2000 from ISP hosted
> e-mail to hosting it on our server. All our users already have SMTP
> address
> and their own e-mail boxes. Currently, incoming e-mail goes to a global
> pop3
> account at the ISP, which exchange picks up every 15 minutes. Outgoing
> e-mail goes to the ISP's SMTP server, which is listed in Exchange in the
> SmallBusiness SMTP Connector.
>
> In order to get everything set up for hosting internally, I will be having
> the ISP change the MX records to point to our server instead of theirs so
> that the incoming mail will be routed here. Other than that, I am
> wondering
> what I should do about the SmallBusiness SMTP Connector. Should I delete
> that connector entirely? Should I set it to "use DNS for mail delivery"?
> I
> was thinking that if I use DNS for mail delivery, the server will still
> send
> through the ISP's mail server. I really wanted to be able to use Exchange
> as
> its own SMTP server. Any thoughts on what I need to do to make sure
> Exchange
> is acting as it's own SMTP server for the outgoing e-mail?
>
> Also, since the ISP (who hosts our domain) will have MX records pointing
> to
> us for e-mail, do I need to enter MX records in my DNS server internally?
> I
> have two ISPs that I will be using concurrently (we have two DSL
> connections), each with it's own static IP addess. I am planning to have
> the
> ISP enter MX records for both possible IP adresses.
>
> Thanks for any help you can provide,
> ~Kyle

Lanwench
Fri Sep 23 22:51:50 CDT 2005



In news:553DB64E-C746-4A78-89D3-014F9B428BA5@microsoft.com,
Kyle Naeve <Kyle Naeve@discussions.microsoft.com> typed:
> I am running SBS 2000, and I want to switch Exchange 2000 from ISP
> hosted e-mail to hosting it on our server. All our users already
> have SMTP address and their own e-mail boxes. Currently, incoming
> e-mail goes to a global pop3 account at the ISP, which exchange picks
> up every 15 minutes. Outgoing e-mail goes to the ISP's SMTP server,
> which is listed in Exchange in the SmallBusiness SMTP Connector.
>
> In order to get everything set up for hosting internally, I will be
> having the ISP change the MX records to point to our server instead
> of theirs so that the incoming mail will be routed here.

Change the TTL on your domain's public DNS to a very low setting before you
change anything over - that way, there will be very little, if any, downtime
when you change your MX records. When it's done, change the TTL back to what
it was before. You will lose precious little mail this way.

> Other than
> that, I am wondering what I should do about the SmallBusiness SMTP
> Connector. Should I delete that connector entirely?

No.

> Should I set it
> to "use DNS for mail delivery"? I was thinking that if I use DNS for
> mail delivery, the server will still send through the ISP's mail
> server.

Sure.

> I really wanted to be able to use Exchange as its own SMTP
> server.

Not an issue - it's up to you. If you don't have a static IP, tho, you may
wish to leave it there and use your ISP's SMTP server as a smarthost.

> Any thoughts on what I need to do to make sure Exchange is
> acting as it's own SMTP server for the outgoing e-mail?

It is, by default, already.
>
> Also, since the ISP (who hosts our domain) will have MX records
> pointing to us for e-mail, do I need to enter MX records in my DNS
> server internally?

No.

> I have two ISPs that I will be using concurrently
> (we have two DSL connections), each with it's own static IP addess.
> I am planning to have the ISP enter MX records for both possible IP
> adresses
>
> Thanks for any help you can provide,
> ~Kyle