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SBS 4.5 - Can`t Recieve External Email

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7 replies

by matthewl

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Im running SBS 4.5 . I have a problem on where I can`t recieve External Email`s . I can send External Emails but not recieve them. I did manage to get around this by stopping all Proxy services but that fails to now .
There is not a problem with our ISP .

7 replies

by abubakr_ghalib

First if I could ask is your SBS 4.5 a pop3 client or an SMTP client? Exchange version for SBS has the ability to act as a pop3 client but this is not possible for a full version of Exchange 5.5. I hope your ISP provider has support for SMTP and youare configuring your SBS as an SMTP client.

To receive emails your ISP provider should provide you with:
1. an Static IP address for the Dialup account
2. Do their SMTP servers support ESMTP and ETRN or TURN?
3. IP address of their DNS Server.
4. IP address or host name of their SMTP server.
5. What form of authentication or encryption (if any) do they support on their SMTP host.
6. The last and the most important one is the DNS record for the domain as this is most of the time is thereason for sending but not receiving emails. A Mail Exchanger (MX) record and an Address (A) record for YOURDOMAIN need to be added to their DNS server. Am saying their DNS server because you are using an SBS server and I don't expect you to have a DNS server of your own but if you do you can add these records to your DNS server.

Then you need to install the Internet Mail Connector and configure it. To configure it follow the procedure in this TechNet page:

http://www.microsoft.com/TechNet/exchange/technote/dialup.asp

It is about Dial-up Internet Mail Service Host Configuration. It is easy and straight forward. If the configuration is correct it the problem is definitly from your ISP although you said it is not.

Good luck.

Ghalib.

by abubakr_ghalib

First if I could ask is your SBS 4.5 a pop3 client or an SMTP client? Exchange version for SBS has the ability to act as a pop3 client but this is not possible for a full version of Exchange 5.5. I hope your ISP provider has support for SMTP and youare configuring your SBS as an SMTP client.

To receive emails your ISP provider should provide you with:
1. an Static IP address for the Dialup account
2. Do their SMTP servers support ESMTP and ETRN or TURN?
3. IP address of their DNS Server.
4. IP address or host name of their SMTP server.
5. What form of authentication or encryption (if any) do they support on their SMTP host.
6. The last and the most important one is the DNS record for the domain as this is most of the time is thereason for sending but not receiving emails. A Mail Exchanger (MX) record and an Address (A) record for YOURDOMAIN need to be added to their DNS server. Am saying their DNS server because you are using an SBS server and I don't expect you to have a DNS server of your own but if you do you can add these records to your DNS server.

Then you need to install the Internet Mail Connector and configure it. To configure it follow the procedure in this TechNet page:

http://www.microsoft.com/TechNet/exchange/technote/dialup.asp

It is about Dial-up Internet Mail Service Host Configuration. It is easy and straight forward. If the configuration is correct it the problem is definitly from your ISP although you said it is not.

Good luck.

Ghalib.

by leobloom

It may be a problem with the modem driver. I installed SBS 4.0 a couple of years ago and accidently allowed the OS to use "Standard Modem Driver." I didnt think there was anything wrong with the modem because I could connect to the ISP. However that driver did cause a problem when Exchange tried to send an ETRN command to download email that had been received by the ISP.

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