SUMMARY

This article explains how to configure MailEnable to only accept inbound mail from authenticated connections. This can be configured as a global server policy or as a postoffice level policy. A scenario where inbound authentication policy is applicable, is if you require MailEnable to only accept connections from an external spam gateway or proxy and reject any direct inbound traffic from other sources. This ensures that only connections that have authenticated can send to (or relay through) the server or postoffice.

SOLUTION

Configuring the inbound authentication option as a global server policy:

1. Navigate within the MailEnable administration console to: Servers > Localhost > Services and Connectors > SMTP.
2. Right click on SMTP and select properties.
3. Next navigate to the "Advanced SMTP" tab and use the drop down menu within the "Inbound authentication" section.
4. Set the option to "Require authentication for all inbound connections".
5. Click "Apply" and then "Ok".
6. Restart the SMTP.

Note: Please consult within your spam gateway/proxy documentation on how to configure the service to authenticate.

Configuring the inbound authentication option as a postoffice level policy:

1. Navigate within the MailEnable administration console to: Servers > Localhost > Services and Connectors > SMTP.
2. Right click on SMTP and select properties.
3. Next navigate to the "Advanced SMTP" tab and use the drop down menu within the "Inbound authentication" section.
4. Set the option to "Authentication determined by postoffice".
5. Restart SMTP.
6. Next navigate to the relevant postoffice in the administration console and right click the postoffice and select properties.
7. Navigate to the "Restrictions" tab and tick the option for "Any emails to this postoffice must come from authenticated connections".
8. Click "Apply" and then "Ok".

MORE INFORMATION