How to determine which Domino is for SMTP traffic after enabling Premium AntiSpam for with Mail Security for Domino.

Article:TECH84995  |  Created: 2006-01-10  |  Updated: 2014-10-06  |  Article URL
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Technical Solution


You are troubleshooting a mail delivery or Premium AntiSpam problem and need to find out the port on which Domino listens for inbound SMTP connections.


To determine the SMTP port for Domino

  1. In the Domino Administrator, on the Configuration tab, in the left pane under Server, click Current Server Document.
  2. In the right pane, on the Ports tab, click Internet Ports.
  3. Under Internet Ports, on the Mail tab, next to TCP/IP Port Number in the Mail (SMTP inbound) column the port number on which Domino listens for SMTP connections appears.

Technical Information
With Premium AntiSpam enabled, the port number that Domino uses for inbound SMTP connections is a high port number instead of port 25.

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