Nice article. Is there a way of loading a list of relay servers via PowerShell or VB script? I have approx. Thank you very much Mark! Thank you also for the command line instructions; would love to try those out when time allows.
I have installed the feature in Windows 7 with SP1. I am getting the following message but I am not receiving in my mailbox. Thanks Mark! This includes a dialog to add some additional items. In addition, select Specify credentials and enter the credentials required to connect to the remote SMTP server.
To perform the same action from the command line use the following commands Powershell is optional : appcmd. Montoya IntelliTechture. Montoya intelliTechture. As shows, I just added Next, navigate to the Delivery tab and modify the settings for all three buttons, Outbound Security… , Outbound connections… , and Advanced…. For the Fully-qualified domain name refers to the server you are configuring, the one the SMTP-Service is being configure on. I did find two leads as to where there may be a command line solution, however: The first is the smtpsetup.
This program takes an INF file with the configuration information. Enter By granting only localhost This is a requirement for security. Click OK to return to the Access tab and then click on the Relay button. By only allowing the localhost IP address Conversely, it prevents the SMTP server from being an open relay and being used to send unsolicited spam email by other computers on the internet, which could lead to the SMTP server being blacklisted.
Next, go to the Messages tab. Here you can enter an email address where copies of non-delivery reports are sent to. You can also configure the location of the Badmail director, however, the default setting should suffice:. Next, go to the Delivery tab:. Click on the Outbound Security button and ensure Anonymous access is selected. As the only server that can connect and relay mail through the SMTP server is localhost this security settings is fine:. Leave the defaults as they are:.
Here you will need to enter the fully-qualified domain name of the SMTP server. This will be the host name or A record that has been created in your DNS zone file. This is straight-forward to do but you will have to confirm how you do this with the party that manages DNS for your domain. I have entered mail. If you click on the Check DNS button you can confirm whether your chosen name resolves successfully.
In my case it does as I see the following:. You can also perform this test by running nslookup to confirm the existence of the host name as well as confirming the IP address it resolves to — which should be the IP address of your server:. Please note that DNS is crucial to successful email delivery. If your SMTP server cannot resolve the domains it is trying to send messages to then it will fail.
From the above screenshot you can see that the DNS server I have configured, cachens2. Often these are only configured to resolve internal namespaces therefore resolving external hostnames may fail.
Also, firewall rules may block your SMTP Server from querying any DNS servers so please check and ensure DNS queries are resolved successfully and if not make sure it get fixed before going onto the testing phase below.
Some of the major email providers perform revers DNS lookups of mail servers connecting to them as a security measure to check their credibility or reputation. Your web host should have a control panel that allows you to configure reverse DNS if you have a dedicated public IP address. Not having a PTR record will not guarantee email delivery failure but it will very likely delay email delivery and at worst may result in your messages being blocked and your host being blacklisted.
I highly recommend you you configure a PTR record for your server. The next step is to verify that the SMTP server is able to send email successfully. To do this follow the steps below:. Create a text file on your desktop called email.
From: blog yourdomain. Save the changes to email. The SMTP server monitors this folder and when it detects the email. This should happen almost immediately.
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