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Able to receive external mail but cannot send

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Able to receive external mail but cannot send - 9.Jan.2012 9:00:38 PM   
skiniemini

 

Posts: 15
Joined: 9.Jan.2012
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Hi,

I am running Exchange 2003 and I am having a problem sending mail out to external domains.

It can receive mail just fine but when I try to send mail to an external domain it just sits in the queue and won't send. 

Any help would be greatly appreciated!

Thanks In Advance!
Post #: 1
RE: Able to receive external mail but cannot send - 10.Jan.2012 6:50:22 PM   
skiniemini

 

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Joined: 9.Jan.2012
Status: offline
Port 25 is open. I used port checkers and I also tried to telnet to a couple different mail servers and they all went through.
Post #: 2
RE: Able to receive external mail but cannot send - 10.Jan.2012 8:03:49 PM   
uemurad

 

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From: California, USA
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Was it working previously? If so, what changed recently?

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 3
RE: Able to receive external mail but cannot send - 10.Jan.2012 10:41:05 PM   
skiniemini

 

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No, I have been trying to solve this problem for quite a while.

I set up the exchange server a while ago and just have never got it to send out email to external domains. I have tried a bunch of things, I just can't pinpoint the problem.

Port 25 is open, I have tried switching the port to 26, and 587 to see if it would send, still nothing.

(in reply to uemurad)
Post #: 4
RE: Able to receive external mail but cannot send - 11.Jan.2012 9:52:06 AM   
uemurad

 

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There are a number of reasons why you can't send out.

How have you verified that outbound port 25 is open? Do you know how to use Telnet to test?

As an example, if you are attempting to use a home Internet connection, chances are outbound TCP 25 is blocked.

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 5
RE: Able to receive external mail but cannot send - 11.Jan.2012 3:49:30 PM   
skiniemini

 

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Joined: 9.Jan.2012
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Neko,

When I connect to a mail server over the internet, it works just fine. Here is what I get when I first connect to smtp.q.com:

220 smtp.q.com ESMTP ecelerity 2.2.2.40 r(29895/29896) Wed, 11 Jan 2012 15:26:26 -0500

I also tried a couple different mail servers and they all connected just fine.

I ran through the commands to send a message and they all went through without any errors.
--------
Uemurad,

Yes, I have verified that port 25 is open. Port 25 is not blocked by my ISP, I have contacted them to make sure and they said it is open.

I also have control of port 25 (whether or not it is open) through a control panel through my ISP.

< Message edited by skiniemini -- 11.Jan.2012 3:50:40 PM >

(in reply to uemurad)
Post #: 6
RE: Able to receive external mail but cannot send - 11.Jan.2012 3:54:06 PM   
uemurad

 

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Okay - now that you have verified (for us) TCP 25 being open outbound, let's talk about your Exchange configuration.

At the top level:

How many Exchange servers are in your Organization?
How many Routing Groups do you have defined?
How many Routing Connectors do you have defined?

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 7
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:02:30 PM   
skiniemini

 

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There is 1 exchange server in the organization

There is 1 routing group defined

There is 1 routing connector

(in reply to uemurad)
Post #: 8
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:11:43 PM   
uemurad

 

Posts: 8232
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With one server and one connector, there are two ways outbound mail can be configured.

1 - Smarthosting via the Default SMTP Virtual Server
2 - via the Routing Connector

To check whether you are smarthosting, open the ESM, expand to your server, Protocols, and SMTP. Open the properties of the Default SMTP Virtual Server, go the Delivery tab and click on Advanced. If something appears in the Smart host field, all outbound mail will attempt to be forwarded to that FQDN. Test by using Telnet to create/send a message from your Exchange server to that FQDN.

If you are not using Smarthosting, then look at your Connector. There is a lot of things to check, so let's take this one step at a time. Open the properties of your connector. On the General tab, is "Use DNS" selected or "Forward all"??

Let me know if Smarthosting via Default SMTP VS is being used, or if the Connector is being used and we'll go on from there.

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 9
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:17:10 PM   
skiniemini

 

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I do not have a smart host in the SMTP Virtual Server.

And I don't think I have a connector for SMTP under the routing connectors. There is only 1 connector and it is for the calendar (Named "Calendar Connector").

Also, would it be easier if I configured it to use a smart host? If so what is a good one?

< Message edited by skiniemini -- 11.Jan.2012 4:19:55 PM >

(in reply to uemurad)
Post #: 10
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:19:27 PM   
uemurad

 

Posts: 8232
Joined: 7.Jan.2004
From: California, USA
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Okay - check to see if you have any Routing Groups defined.

Do you see a folder named Routing Groups within your Exchange Organization in the ESM? If so, are there any entries in it?

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 11
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:21:33 PM   
skiniemini

 

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Joined: 9.Jan.2012
Status: offline
Yes, there is one routing group defined. It is named "First Routing Group"
And it has one connector in it named "Calendar Connector"

Under the SMTP Protocol there is one SMTP Virtual Server

< Message edited by skiniemini -- 11.Jan.2012 4:23:49 PM >

(in reply to uemurad)
Post #: 12
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:28:28 PM   
uemurad

 

Posts: 8232
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First, look at the Members folder and verify that your server is listed.

Next, right click on Connectors and select New / SMTP Connector.
Give the Connector a name (e.g. Internet Delivery).
Leave the radio button "Use DNS ..." selected.
Below the Local bridgeheads field click Add and select your server.
On the Address Space tab click Add, select SMTP, leave fields as they are and click OK.
Click OK to end the configuration.

That is the simplest outbound configuration (via SMTP Connector). If your server is able to get public DNS information, you should be able to send out mail provided your SMTP (Simple Mail Transfer Protocol) service is running on your server.

Try that and see what happens.

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 13
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:34:25 PM   
skiniemini

 

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Joined: 9.Jan.2012
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Ok, I setup the new SMTP connector with the settings you specified but I am still unable to send out mail.

And I checked to make sure the SMTP service is running and it is.

(in reply to uemurad)
Post #: 14
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:36:32 PM   
uemurad

 

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1. Check to see if anything is in the queues (under your server).
2. Stop then start the SMTP service (normally isn't necessary).

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 15
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:39:39 PM   
skiniemini

 

Posts: 15
Joined: 9.Jan.2012
Status: offline
Yes, there is a message put in the queue for the SMTP connector out to the domain I am sending to (q.com)
Name: SMTP- q.com (SMTP Connector)
Protocol: SMTP
State: Retry
Number of Messages: 1

(in reply to uemurad)
Post #: 16
RE: Able to receive external mail but cannot send - 11.Jan.2012 4:57:53 PM   
uemurad

 

Posts: 8232
Joined: 7.Jan.2004
From: California, USA
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Okay - that's a start.
Use Message Tracking to confirm your message was transferred to SMTP.
Do you know if you have SMTP logging enabled?

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 17
RE: Able to receive external mail but cannot send - 11.Jan.2012 5:07:18 PM   
skiniemini

 

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Joined: 9.Jan.2012
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If I am reading this log right from message tracking, yes it was submitted to SMTP.

SMTP Logging was not. I just enabled it.

< Message edited by skiniemini -- 11.Jan.2012 5:08:22 PM >

(in reply to uemurad)
Post #: 18
RE: Able to receive external mail but cannot send - 11.Jan.2012 5:21:25 PM   
uemurad

 

Posts: 8232
Joined: 7.Jan.2004
From: California, USA
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Since it is getting to SMTP, and since you've just started logging, you'll need to send another test message.

Also, in the SMTP logging, click on the Properties button, go to the Advanced tab and check all of the property fields (so they are included in the logging).

_____________________________

Regards,

Dean T. Uemura
Microsoft MVP - Exchange (2007-2011)
exchangeguy.blogspot.com
uemurad@yahoo.com

(in reply to skiniemini)
Post #: 19
RE: Able to receive external mail but cannot send - 11.Jan.2012 5:38:03 PM   
skiniemini

 

Posts: 15
Joined: 9.Jan.2012
Status: offline
Ok, I sent another email but I cannot find the log file.

It says it is in C:\Windows\System32\LogFiles\SMTPSVC2

But I do not see the folder

[EDIT]
Oh wait, It's set to hourly. I guess it creates a log file every hour.

< Message edited by skiniemini -- 11.Jan.2012 5:51:56 PM >

(in reply to uemurad)
Post #: 20

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