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Sendmail Does Not Honor Local_only = true Default Setting and is allowing access to port 25 from a remote system. (Doc ID 2664023.1)

Last updated on JUNE 24, 2020

Applies to:

Solaris Operating System - Version 11.3 and later
Oracle Solaris on SPARC (64-bit)
Oracle Solaris on x86-64 (64-bit)

Symptoms

Telent or mconnect to the server from a remote system should return Connection Refused instead it allowing the connection to port 25 to occur.

Changes

The Removal of the lo0 IPv6 interface in Solaris 11 can trigger this issue.       

Cause

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In this Document
Symptoms
Changes
Cause
Solution
 
 
References


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