With 'Pop Before SMTP' Enabled on the MMP, Why do some SMTP Clients Not Need to Authenticate?

(Doc ID 1464671.1)

Last updated on JUNE 20, 2017

Applies to:

Oracle Communications Messaging Server - Version 6.3 and later
Information in this document applies to any platform.
Checked for relevance on 01-06-2014.

Goal

In the Messaging Administration Guide, on 'Enabling POP Before SMTP', in the section 'To Install the SMTP Proxy'  the following is written :

4.Make sure the IP address that the MMP uses to connect to the SMTP server is not treated as “internal” by the INTERNAL_IP mapping table.
See To Add SMTP Relaying for information about the INTERNAL_IP mapping table.

   

We have made sure this is configured correctly but nevertheless we see a certain smtp client does not need the 'POP Before SMTP' process to be able to send mail.
We've checked and it seems the client IP address is inside the INTERNAL_IP range inside the mappings file..

Is this expected ?
 

Solution

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