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j_ramesesFlag for United States of America asked on

How do I configure Exchange after I had a change in IP address and a change from DSL to cable internet service?

I am runnning SBS 2003 R2 on my server.
I am running Windows XP service pack 2 on the clients.
I am running Outlook 2003.
I am running Exchange Server 2003.

My Exchange Server was running smoothly early last week.
At the end of the week we moved to a new office and we changed our ISP.
In the process we changed from DSL service to cable service.
As well as we received new IP addresses.

I configured the router with the new IP addresses but I am not receiving any new emails from outside the network.
We took down the server down last week on Wednesday and today the router was configured with the new settings.
One thing I can add to this note is that the internet is running real slow, I do not know if that has anything to do with the failure to receive emails.
Please advise.
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j_rameses

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
marcwex

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marcwex

Also you need to make sure that your router (or perhaps firewall) is properly routing the external ip for your email to the proper internal address.
Coolie Sheppard

If your ISP is hosting your Email, contact them and tell them to make the IP address changes on their side.


If you're hosting your own domain, you're going to have to go to the site that you registered your domain with and have it point to your Exchange server again.  (Do this if you never moved it off of their DNS server to yours)


ASKER
j_rameses

marcwex, our MX Record has been changed already.
How do I check the message queue in the exchange server to make sure it is not acting as an open relay?
How do I change the internal DNS server, I mean update the forwarder IP address?
Am I suppose to go to THE DNS Interface in SBS and right click on the name of server and select forwarders and remove the old ip addresses which where the DNS primary and secondary and enter the new ones?
Please advise.
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Coolie Sheppard

To check the message queue, go to Exchange System Manager, Expand Administrative Groups > First Administrative Groups > Servers > YourServer > Queues


If it begins to fill up with emails from people you don't know, it's an open relay.  To close it you can follow this:

http://www.amset.info/exchange/spam-cleanup.asp
Coolie Sheppard

You said your IP address has changed.  Has all your internal changed as well or was it just the public IP address?
ASKER
j_rameses

marcwex,
how do I make sure that my router (or perhaps firewall) is properly routing the external ip for your email to the proper internal address?
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ASKER
j_rameses

cshepfam,
Regarding:
"If it begins to fill up with emails from people you don't know, it's an open relay. ",
I do not see emails all I see is the following Names:
DSN messages pending submission
Exchange MTA
Failed message retry queue
Local delivery
Messages awaiting directory lookup
Messages pending submission
Messages queued for deferred delivery
Messages waiting to be routed
TURN - incoming.verizon.net (SMTP Connector) [I NO LONGER HAVE VERIZON I HAVE CABLEVISION AS MY ISP, IS THIS GOING TO BE PROBLEMATIC?]
ASKER
j_rameses

cshepfam,
you mentioned "Has all your internal changed as well or was it just the public IP address?", I do not understand?
ASKER
j_rameses

everyone, now my internet is running fast.
now, how do I resolve receiving my old emails since the server has been shut down?
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rwheeler23
ASKER
j_rameses

guys, How do I configure my Exchange to receive emails???
Coolie Sheppard

Okay.



You said your ISP has changed.  That's your problem right there.


Your SMTP connector was set to incoming.verizon.net, which means Verizon was hosting your Email.  You're now going to have to find out the mail settings for Cablevision, then configure your SMTP connector with their mail server settings.
ASKER
j_rameses

cshepfam,
How do I find out the mail settings for cablevision?
Should I give them a call?
If yes, what should I ask them?
How di Configure my SMTP connector with the new mail server settings?
Also, please provide me wit the directory on how to do so?
Thanx.
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Coolie Sheppard

You're going to need to call them.  Tell them that you switched ISP's and now you're not receiving email.  Tell them that you're going to need their mail server settings so you can configure it on your Exchange server.

Cablevision has a data department.  They can easily walk you through this step.

To configure your new mail server settings on the SMTP connector, you're going to go to Exchange System Manager, expand Administrative Groups > First Administrative Groups > Routing Groups > First Routing Group > Connectors


In Connectors, you should see your SMTP connector that probably says incoming.verizon.net.

If you do see this, let me know and I'll tell you what to do next.  If you don't, let me know and I'll tell you what to do next
ASKER
j_rameses

cshepfam,
I do not see anything under "Small Business SMTP Connector"
What should I do now, I got the mail settings from Cablevision.
Coolie Sheppard

Okay.  I'm going to walk you through this setup.  Give me a minute to put it all together.  
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Coolie Sheppard

What you're going to want to do is create a SMTP connector.


Go to Exchange System Manager.  Expand Administrative Groups > First Administrative Group > Routing Groups > First Routing Group > Connectors

Right click on the Connectors folder and select New > SMTP Connector

Name it whatever you want.

Under the General Tab select "Forward all mail through this connector to the following smart hosts"

Enter your ISP's server here


Under Local bridgeheads, Add your Exchange server(s) here


Now go to the Address Space tab.  For Type, put in SMTP.  For Address, put in *, For Cost, put in 1

Hit OK until you get out of there.


Now go to Start > Run and type in service.msc


Go to your SMTP service and restart it.


While you're in there, make sure your Microsoft Exchange POP3 service is started


Now go back to Exchange System Manager and expand Administrative Groups > First Administrative Group > Servers > YourServer > Protocols > POP3 > Default POP3 Virtual Server

Make sure it doesn't have a Red X in it.  If it does, right click it and start it AFTER you started your Microsoft Exchange POP3 service.


Send a test email
ASKER
j_rameses

cshepfam,
you mention "Go to your SMTP service and restart it.", are you referring to the one I created or the one named "Simple Mail Transfer Protocol(SMTP)"?
If you meant the one that I created/named, it is not on the list in services.
I restarted the "Simple Mail Transfer Protocol(SMTP)" and follow your instructions and sent out a test email but nothing arrived at Outlook.
Please advise.
ASKER
j_rameses

cshepfam,
Regarding "TURN - incoming.verizon.net (SMTP Connector) [I NO LONGER HAVE VERIZON I HAVE CABLEVISION AS MY ISP, IS THIS GOING TO BE PROBLEMATIC?]" is this a conflict?
Can it be deleted?
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Coolie Sheppard

you can delete it.  And yes, it can be problematic.


Delete it and use Cablevison.  


SMTP is used to send email, you are sending successfully.


Now you want to receive and thats POP3.  Make sure on your firewall you are allowing POP3 to your Exchange server.  POP3 is also Port 110
ASKER
j_rameses

cshepfam,
sorry for posting a new thread, i got nervous thinking you were done for the day and I need Exchange running by today.
Regarding, deleting Verizon, how do I go about doing that?
I do not see it but only in the queues as mentioned early above.
I can successfully send email from within Exchange but I am unable to receive emails.
How do I check on my firewall if POP3 is Port 110?
ALso, will I receive my old emails from Wednesday, last week?
Coolie Sheppard

All email from last week, unless deleted, is still in your mailbox on the server.  When we get this working, it should pull the email out of the server.


What type of firewall do you have?  You should be able to log into it, and see if POP3 is in there.


Regarding the queue, let's clean it out and see what happens.  Do this:


   1. In ESM, Connectors.
   2. Right click on connectors and choose New, SMTP Connector.
   3. On the "General Tab" type a name for the connector. "Spam Cleanup" or similar.
   4. Click the "Add" button under "Local Bridgeheads" and choose your Exchange server.
   5. Click on the "Address Space" tab.
   6. Click "Add" and choose SMTP. Leave each setting (* and cost of 1) and press ok.
      If all the spam is to one domain, then you could remove the * and enter the domain that the messages are being sent to. This should leave legitimate messages in the queue.
   7. Click on the General tab again. Change the option in the centre from DNS to "Forward all mail through this connector to the following smart hosts".
   8. Enter an invalid IP address in square brackets:  [99.99.99.99].
   9. Click on the "Delivery Options" tab and ensure that "Specify when messages are sent through this connector" is selected.
  10. Change the option to 11pm. (If it is close to 11pm when you are doing this, use a much earlier time - 6am or similar. The time doesn't matter as long as it is not close).
  11. Press Apply/OK to close the SMTP Connector dialogue.
  12. Restart SMTP Virtual Server.
         1. Expand Servers, <your server>, Protocols, SMTP.
         2. Right click on the "Default SMTP Virtual Server"
         3. Choose "Stop". This may take a few minutes.
         4. Once it has stopped, right click again and choose "Start".



That information was taken from this site:


http://www.amset.info/exchange/spam-cleanup.asp


Theres more important info in there if you want to take a look

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ASKER
j_rameses

cshepfam,
The firewall I have is from the Linksys router.
I added the port 110 to the firewall option i the router configurations.
I still can not receive emails.
Coolie Sheppard

let's configure the MX record then.


Go to Start > Administrative Tools > DNS

Expand Forward Lookup Zones

Do you see your domain in there?  
ASKER
j_rameses

yes my domain is there
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ASKER
j_rameses

there is a _msdcs.my_domain_name.local
and a
my_domain_name.local
Coolie Sheppard

theres the problem.  you don't even have a mx record or zone created for your email.


hold on
ASKER
j_rameses

shepfam,
Regarding, deleting Verizon, how do I go about doing that?
I do not see it but only in the queues as mentioned early above.
Your help has saved me hundreds of hours of internet surfing.
fblack61
SOLUTION
Coolie Sheppard

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ASKER
j_rameses

cshepfam,
when i write "my_domain_name" I am referring to the name of my domain
ASKER
j_rameses

yes, we have a website domain purchased.
how do I find the IP address for our domain on the web?

we purchased domain name and a host service from www.serverfly.com.
I believe our email went through mail.verizon.net
SOLUTION
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Coolie Sheppard

Once you log in and have control, you need to make certain configurations to your Exchange server first, and then your domain in Dotster.


YOU MUST HAVE DNS CONFIGURED ON THE EXCHANGE SERVER
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Coolie Sheppard

Disregard the last post.



Since you don't have a vast amount of experience in Exchange, I would contact your new ISP and tell them you want them to host your Email.  


They will need the necessary information to access Dotster and make the changes.
Coolie Sheppard

They will walk you through it step by step.  


So bottomline.


1. Contact Verizon to get the username and password for Dotster
2. Contact your new ISP and tell them you want them to host your email
3. Give them the information to access that domain in Dotster
4. Allow them to walk you through the necessary changes you will have to make.
ASKER
j_rameses

cshepfam,
i can receive my emails now.
i needed the new isp to open the ports 80 & 25.
also, the host provider told me that it takes 24-96 hours for the new ip to propagate.
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