IIS and SMTP - Sending mail from personal mail server

Author

Sending mail from personal mail server

ClaySPowell

2004-12-01, 5:57 pm

I have recently set up an older computer with windows server 2003. i have
installed dns, iis 6, and promoted to domain controller. i can send and
receive emails to anyone on my local network. i can send emails to certain
external addresses but i cannot for others. i also cannot receive emails
from any outside addresses. i currently do not have a registered domain name
so i am assuming that is why i cannot receive any emails from external
address, but i have not been able to figure out why there are certain
external addresses i can send to but others i cannot. any help would be
greatly appreciated. i have my mail server sending mail itself and is not
using a smart host, i have tried configuring to use a smart host either have
received the same results or was unable to send mail at all. thank you in
advance for your time and effort.

Jeff Cochran

2004-12-02, 8:17 am

On Wed, 1 Dec 2004 16:25:01 -0800, "ClaySPowell"
<ClaySPowell@discussions.microsoft.com> wrote:

>I have recently set up an older computer with windows server 2003. i have
>installed dns, iis 6, and promoted to domain controller. i can send and
>receive emails to anyone on my local network. i can send emails to certain
>external addresses but i cannot for others. i also cannot receive emails
>from any outside addresses. i currently do not have a registered domain name
>so i am assuming that is why i cannot receive any emails from external
>address, but i have not been able to figure out why there are certain
>external addresses i can send to but others i cannot. any help would be
>greatly appreciated. i have my mail server sending mail itself and is not
>using a smart host, i have tried configuring to use a smart host either have
>received the same results or was unable to send mail at all. thank you in
>advance for your time and effort.

You'll need to check your SMTP logs as well as NDR's, but first guess
is you have a dynamic IP and many systems are dropping your email as
potential spam. Second guess is that your ISP is blocking port 25 so
you can't send spam or be used as a relay. Third guess would be your
firewall or router config.

Jeff

Kristofer Gafvert

2004-12-02, 8:17 am

Hello,

The reason why you cannot send to some email addresses, is probably because
the receiving SMTP server has some kind of protection agains SPAM, and
classifies your SMTP server as a server sending out SPAM. This happens if
your email server is not properly configured as an email server (and in your
case, you at least do not have the domain name properly configured).

Sometimes, the logs can tell you why you cannot send to the remote SMTP
server. Please check the SMTP log files, and the Event Log.

--
Regards,
Kristofer Gafvert
http://www.ilopia.com

"ClaySPowell" <ClaySPowell@discussions.microsoft.com> wrote in message
news:E4785EAC-08F9-4446-A0C1-71FE5BA34B86@microsoft.com...
>I have recently set up an older computer with windows server 2003. i have
> installed dns, iis 6, and promoted to domain controller. i can send and
> receive emails to anyone on my local network. i can send emails to
> certain
> external addresses but i cannot for others. i also cannot receive emails
> from any outside addresses. i currently do not have a registered domain
> name
> so i am assuming that is why i cannot receive any emails from external
> address, but i have not been able to figure out why there are certain
> external addresses i can send to but others i cannot. any help would be
> greatly appreciated. i have my mail server sending mail itself and is not
> using a smart host, i have tried configuring to use a smart host either
> have
> received the same results or was unable to send mail at all. thank you in
> advance for your time and effort.

ClaySPowell

2004-12-03, 6:10 pm

Thank you for the input guys I appreciate the help. My ISP doesnt have port
25 blocked, I havent actually checked into it but there are a lot of
addresses that i can send mail to outside my domain so I am assuming that
eans that port 25 is open. I do have a dynamic IP so the thought on other
servers thinking I am a spam server would kind of make sense. I have gone
over all my router configurations and even though my actual network is on a
dynamic IP I have all the computers on my network setup with static IP
addresses and I have the DMZ Host setting enabled and pointed toward my
server's address. I tried reloading the whole thing from scratch and
reinstalled everything and began anew but I am back where i started. i can
send and receive mail throughout my domain perfectly....i can send email to
some addresses outside of my domain but there are some that i cannot. and of
course since i do not have a registered name yet i cannot receive any from
outside my domain. there could be some setting i am missing but im not quite
sure. perhaps when i finally register my domain my problems will be easier
to resolve. i thank you both for your time and effort.

"Kristofer Gafvert" wrote:

> Hello,
>
> The reason why you cannot send to some email addresses, is probably because
> the receiving SMTP server has some kind of protection agains SPAM, and
> classifies your SMTP server as a server sending out SPAM. This happens if
> your email server is not properly configured as an email server (and in your
> case, you at least do not have the domain name properly configured).
>
> Sometimes, the logs can tell you why you cannot send to the remote SMTP
> server. Please check the SMTP log files, and the Event Log.
>
> --
> Regards,
> Kristofer Gafvert
> http://www.ilopia.com
>
>
> "ClaySPowell" <ClaySPowell@discussions.microsoft.com> wrote in message
> news:E4785EAC-08F9-4446-A0C1-71FE5BA34B86@microsoft.com...
>
>
>

CLaySPowell

2004-12-03, 6:10 pm

Just to touch base and let everyone know.....i took your advice and began
searching through my smtp logs and found the reason why certain emails could
not be sent outside my domain. it appears the reason is because i have not
registered my domain name yet. for all the emails i attempted to send that
were not able to be delivered the error code stated something to the effect
that the sending domain did not exist. i guess as a spam guard or some other
sort of protection certain servers check DNS entries to validate where the
mail is coming from and if the domain isnt listed then they reject.....but
politely cause the error message said "no thank you, rejected. domain does
not exist"....lol....thank you all for your time and effort

"ClaySPowell" wrote:
[vbcol=seagreen]
> Thank you for the input guys I appreciate the help. My ISP doesnt have port
> 25 blocked, I havent actually checked into it but there are a lot of
> addresses that i can send mail to outside my domain so I am assuming that
> eans that port 25 is open. I do have a dynamic IP so the thought on other
> servers thinking I am a spam server would kind of make sense. I have gone
> over all my router configurations and even though my actual network is on a
> dynamic IP I have all the computers on my network setup with static IP
> addresses and I have the DMZ Host setting enabled and pointed toward my
> server's address. I tried reloading the whole thing from scratch and
> reinstalled everything and began anew but I am back where i started. i can
> send and receive mail throughout my domain perfectly....i can send email to
> some addresses outside of my domain but there are some that i cannot. and of
> course since i do not have a registered name yet i cannot receive any from
> outside my domain. there could be some setting i am missing but im not quite
> sure. perhaps when i finally register my domain my problems will be easier
> to resolve. i thank you both for your time and effort.
>
> "Kristofer Gafvert" wrote:
>