Sending emails from Intranet site

my recently setup a intranet for my company using IIS 6.0. the problem i am
runninginto is that when a using is trying to send a email from the intranet
site it will send the email to email externally, but will not deliver
internally. what am i missing in my setup. if you need more information pleae
let me know. Thanks.

The MX record of you mail server is probably held by your ISP and is an
External location,...so it sends it there, or tries anyway, and probably
fails.

1. The Web Server needs to use your Internal AD/DNS,...not any external DNS.
Your internal AD/DNS needs to use the ISP's DNS as a Forwarder in the
Forwarders List. It then needs to be allowed by the firewall to make
outbound DNS Queries to the ISP's DNS.

2. Your internal DNS needs an MX Record that points to the Internal "A"
Record of you internal mail server. Note: MX Records are pointed to
existing Host records, not directly to an IP# (The Host "A" records do
that).

Now email sent to destination addresses of your own system will go direct to
your internal mail server.

For external destiantions, the target is resolved by the AD/DNS querying the
ISP's DNS to get the IP#. At that point the Webserver makes a direct
connection outbound to the target mail server and the mail sends fine.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------


"fanman36" <(E-Mail Removed)> wrote in message
news:991DF6AE-AC59-47B0-892B-(E-Mail Removed)...
> my recently setup a intranet for my company using IIS 6.0. the problem i
> am
> runninginto is that when a using is trying to send a email from the
> intranet
> site it will send the email to email externally, but will not deliver
> internally. what am i missing in my setup. if you need more information
> pleae
> let me know. Thanks.

I have those things in place. I have the MX record in my DNS which use the
IP address of my Exchange server and also a host A do I need to install DNS
services on my webserver to help with this issue? I have a Exchange server in
house that deliver my internal and external emails. The information you gave
is exactly how I have my Exchnage server and DNS confugured to deliver
emails. This intranet will send internal emails to let certain supervisors
know when a maintenance request was created.

"Phillip Windell" wrote:

> The MX record of you mail server is probably held by your ISP and is an
> External location,...so it sends it there, or tries anyway, and probably
> fails.
>
> 1. The Web Server needs to use your Internal AD/DNS,...not any external DNS.
> Your internal AD/DNS needs to use the ISP's DNS as a Forwarder in the
> Forwarders List. It then needs to be allowed by the firewall to make
> outbound DNS Queries to the ISP's DNS.
>
> 2. Your internal DNS needs an MX Record that points to the Internal "A"
> Record of you internal mail server. Note: MX Records are pointed to
> existing Host records, not directly to an IP# (The Host "A" records do
> that).
>
> Now email sent to destination addresses of your own system will go direct to
> your internal mail server.
>
> For external destiantions, the target is resolved by the AD/DNS querying the
> ISP's DNS to get the IP#. At that point the Webserver makes a direct
> connection outbound to the target mail server and the mail sends fine.
>
> --
> Phillip Windell
> www.wandtv.com
>
> The views expressed, are my own and not those of my employer, or Microsoft,
> or anyone else associated with me, including my cats.
> -----------------------------------------------------
>
>
> "fanman36" <(E-Mail Removed)> wrote in message
> news:991DF6AE-AC59-47B0-892B-(E-Mail Removed)...
> > my recently setup a intranet for my company using IIS 6.0. the problem i
> > am
> > runninginto is that when a using is trying to send a email from the
> > intranet
> > site it will send the email to email externally, but will not deliver
> > internally. what am i missing in my setup. if you need more information
> > pleae
> > let me know. Thanks.
>
>
>

"fanman36" <(E-Mail Removed)> wrote in message
news:AA568419-5B13-433B-BFD8-(E-Mail Removed)...
>I have those things in place. I have the MX record in my DNS which use the
> IP address of my Exchange server and also a host A

Check for mistakes in that. Also make sure the Web Server is not using any
other DNS Server but that one.

> do I need to install DNS services on my webserver to help with this issue?

Absolutely not. No, no, no.

> house that deliver my internal and external emails. The information you
> gave
> is exactly how I have my Exchnage server and DNS confugured to deliver
> emails. This intranet will send internal emails to let certain
> supervisors
> know when a maintenance request was created.

You mave to make sure the Webserver (I assume with some kind of SMTP
Component?) is trying to use the correct IP of your internal mail server
during the attempt. That may require a packet sniffer be run on the
webservere and watch what the outbound SMTP packets are doing.

Make sure that the mail server's SMTP service has no restrictions that could
cause it to not accept connections from the Web Server IP#.

--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------
Understanding the ISA 2004 Access Rule Processing
http://www.isaserver.org/articles/IS...cessRules.html

Troubleshooting Client Authentication on Access Rules in ISA Server 2004
http://download.microsoft.com/downlo...7/ts_rules.doc

Microsoft Internet Security & Acceleration Server: Partners
http://www.microsoft.com/isaserver/partners/default.asp

Microsoft ISA Server Partners: Partner Hardware Solutions
http://www.microsoft.com/forefront/e...epartners.mspx
-----------------------------------------------------

one last question under the Default SMTP Vitual Server properties on the
webserver should I leave the option to assign an IP address "Unassigned" or
should I use the webserver IP address?

"Phillip Windell" wrote:

> "fanman36" <(E-Mail Removed)> wrote in message
> news:AA568419-5B13-433B-BFD8-(E-Mail Removed)...
> >I have those things in place. I have the MX record in my DNS which use the
> > IP address of my Exchange server and also a host A
>
> Check for mistakes in that. Also make sure the Web Server is not using any
> other DNS Server but that one.
>
> > do I need to install DNS services on my webserver to help with this issue?
>
> Absolutely not. No, no, no.
>
> > house that deliver my internal and external emails. The information you
> > gave
> > is exactly how I have my Exchnage server and DNS confugured to deliver
> > emails. This intranet will send internal emails to let certain
> > supervisors
> > know when a maintenance request was created.
>
> You mave to make sure the Webserver (I assume with some kind of SMTP
> Component?) is trying to use the correct IP of your internal mail server
> during the attempt. That may require a packet sniffer be run on the
> webservere and watch what the outbound SMTP packets are doing.
>
> Make sure that the mail server's SMTP service has no restrictions that could
> cause it to not accept connections from the Web Server IP#.
>
> --
> Phillip Windell
> www.wandtv.com
>
> The views expressed, are my own and not those of my employer, or Microsoft,
> or anyone else associated with me, including my cats.
> -----------------------------------------------------
> Understanding the ISA 2004 Access Rule Processing
> http://www.isaserver.org/articles/IS...cessRules.html
>
> Troubleshooting Client Authentication on Access Rules in ISA Server 2004
> http://download.microsoft.com/downlo...7/ts_rules.doc
>
> Microsoft Internet Security & Acceleration Server: Partners
> http://www.microsoft.com/isaserver/partners/default.asp
>
> Microsoft ISA Server Partners: Partner Hardware Solutions
> http://www.microsoft.com/forefront/e...epartners.mspx
> -----------------------------------------------------
>
>
>

"fanman36" <(E-Mail Removed)> wrote in message
news:AF31FC87-8971-4E1F-B85C-(E-Mail Removed)...
> one last question under the Default SMTP Vitual Server properties on the
> webserver should I leave the option to assign an IP address "Unassigned"
> or
> should I use the webserver IP address?

Unassigned is fine. You only need to specifiy the IP if the machine has
multiple web sites with muliple IP# bound to the Nic. But either way, the
outbound mail initiated by the local SMTP Component (if that is how you are
doing it?) would show comming from the Primary IP# of that nic and not any
other numbers. For that matter, any traffic initiated from the webserver
itself would show comming from the Primary IP# of that nic and not any other
numbers.


--
Phillip Windell
www.wandtv.com

The views expressed, are my own and not those of my employer, or Microsoft,
or anyone else associated with me, including my cats.
-----------------------------------------------------
Understanding the ISA 2004 Access Rule Processing
http://www.isaserver.org/articles/IS...cessRules.html

Troubleshooting Client Authentication on Access Rules in ISA Server 2004
http://download.microsoft.com/downlo...7/ts_rules.doc

Microsoft Internet Security & Acceleration Server: Partners
http://www.microsoft.com/isaserver/partners/default.asp

Microsoft ISA Server Partners: Partner Hardware Solutions
http://www.microsoft.com/forefront/e...epartners.mspx
-----------------------------------------------------