RE: Pop3 connector, DNS and mail receive problem...

Hi Enrico,

Thank you for your e-mail.

As you mentioned, you can receive the mails, but i can't send anything
outside (the internal mail works). To narrow down this issue, please
perform the below steps:

1. Please re-verify the running status of the "Default SMTP Virtual
Server", in the previous post, we stop it for troubleshoot the POP3
Connector issue.

2. As you mentioned, can I assume you can send email to internal
recipients, but cannot send email to internet recipients or certain
domains' recipients?

3. Please follow the below steps to re-run the CEICW:

a. Run the CEICW and go through the Internet and firewall option.

b. In the Internet E-mail tab, please click to "Enable Internet
E-mail".

c. In the Email Delivery method page, please choose the correct
email delivery method. If you need to forward internet email to your ISP
Smarthost, please input the Smarthost address correctly. If you use DNS to
route emails, please choose this option.

Note: If you choose to forward emails to the ISP's email server (smart
host), you need to type the FQDN of the ISP's email server. If your ISP
provides you the IP address of their email server, for example,
12.34.56.78, you should type the IP address as "[12.34.56.78]" (without the
quotation marks) on the connector's properties page.

d. Input the correct information in the rest page and finish the
wizard. Note: you could just leave the option unchanged, since your
Exchange could receive internet emails fine.

For delivering the internet emails, if you have hardware router, you should
make sure the Outbound TCP port 25 is opening. For your ISP configuration,
you ISP should allow TCP port 25 outbound communication.

If your SBS server uses ISP smarthost, I would like to bring the following
article to your attention

827601 Cannot send external mail when your smart host server is different
from
http://support.microsoft.com/?id=827601

4. When the issue happens again, in the Exchange Server, please telnet
the destination mail server which you cannot send mail to by the following
steps.

a. Click Start, click Run, type telnet, and then click OK.

b. At the Microsoft Telnet command prompt, type open server_name 25, and
then press ENTER.

c. To verify that you are successfully connected to the SMTP Mail Service,
type helo domain.com, and then press ENTER.

d. Type mail from: , and then press ENTER.

e. Type rcpt to: , and then press ENTER.

f. Type "quit" (without the quotation marks), and then press ENTER two
times to close the connection to the server and leave the Telnet session
running.

For more information about these 6 steps, please refer to the following
article.

XFOR: Telnet to Port 25 of IMC to Test IMC Communication:
http://support.microsoft.com/?id=153119

Please let me know the result and capture a screen shot if there is any
error during this process and attach it in your reply.

If the problem still persists, please help gather the following information
for analysis:

1. What's the error message when the user tries to send internet emails?
Is there any NDR (Non-Delivery Report)? If yes, Please kindly paste the
context in your reply.

2. Enable SMTP logging and gather SMTP log to troubleshoot the issue:

A. Open Exchange System Manager, expand Servers -> <Server name> ->
Protocols -> SMTP, right-click "Default SMTP Virtual Server" and click
Properties.

B. Under the General tab, check the option "Enable Logging".

C. With "W3C Extended Log File Format", click "Properties".

D. Under "General Properties", make sure "Use local time for file naming
and rollover" is CHECKED.

E. Switch to the "Extended Properties", and then select to enable All the
logging Options.

F. Click OK to apply the modification.

G. Right-click Default SMTP Virtual Server and click Stop.

H. Right-click Default SMTP Virtual Server and click Start to restart the
SMTP server.

I. Reproduce the issue, repeat step G to stop Default SMTP Virtual Server,
copy out or zip the SMTP log files in the
"%systemroot%\system32\logfiles\SmtpSvc1" folder, and then restart the
"Default SMTP Virtual Server".

To get additional information, you may refer to the following KB article:

265293 How to Configure the SMTP Connector in Exchange
http://support.microsoft.com/?id=265293

294736 When to create SMTP connectors in Exchange 2000 and later
http://support.microsoft.com/?id=294736

I am appreciated your time and cooperation. If anything is unclear, please
feel free to let me know. I am looking forward to hearing from you.

Best regards,

Nathan Liu (MSFT)
Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security
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--------------------
>From: "Enrico" <REMOVE_enrico@xxxxxxxx>
>Newsgroups: microsoft.public.windows.server.sbs
>Subject: Pop3 connector, DNS and mail receive problem...
>Date: Thu, 28 Jul 2005 18:02:33 +0200
>X-Priority: 3
>X-MSMail-Priority: Normal
>X-Newsreader: Microsoft Outlook Express 6.00.2900.2527
>X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527
>X-RFC2646: Format=Flowed; Original
>Lines: 22
>Message-ID: <42e90199$0$7050$5fc30a8@xxxxxxxxxxxxxxx>
>Organization: Tiscali SpA
>NNTP-Posting-Host: 217.133.45.152
>X-Trace: 1122566553 news.tiscali.it 7050 217.133.45.152:2030
>X-Complaints-To: abuse@xxxxxxxxxx
>Path:
TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!newsfeed00.sul.t-online.de!t-onli
ne.de!tiscali!newsfeed1.ip.tiscali.net!draco.tiscalinet.it!news-f1.tiscali.i
t!not-for-mail
>Xref: TK2MSFTNGXA01.phx.gbl microsoft.public.windows.server.sbs:139559
>X-Tomcat-NG: microsoft.public.windows.server.sbs
>
>Hi to all...
>I have a problem with exchange on a Windows SBS 2003 machine.
>This is the first time that i try to use the dns to send the mail, before
>i've used the smarthost options.
>But now, i think that is better to move with the dns send option...
>I've read a lot of documents, tutorial and web pages, but i was not able
to
>make all working correctly.
>I have some mail accounts on tiscali (xxx@xxxxxxxxxx), and i use the
>exchange built in pop3 connector to download this messages.
>The mail sending is ok, but the pop3 connector doesn't relay to local
users
>the messages (so no-one receive mails)...
>
>The modify that i've done are:
>-Changed the smtp to use dns instead smarthost
>-Configured the dns addresses
>-Changed under 'protocols' the default smtp policies
>
>Now, what i am missing to make all work?
>
>Really thanks!
>
>
>

.

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