Symantec Messaging Gateway 10.5.3 Release Notes and Late Breaking News

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Article ID: 161019

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Products

Messaging Gateway

Issue/Introduction

Symantec Messaging Gateway 10.5.3 Release Notes and Late Breaking News

Resolution

 Release Notes:
10.5.3
http://www.symantec.com/docs/DOC7792

Late Breaking News:
Updating to SMG 10.5.3
Symantec Messaging Gateway (SMG) 10.5.1 was a "gated release", meaning that you would need to be on this, or 10.5.2, prior to being able to update to SMG 10.5.3. In order to install 10.5.3 from a version prior to 10.5.1, you will need to either upgrade to 10.5.1 first, or use the ISO image to OS Restore a fresh image to the SMG server.

Option to disable SSLv3 added to SMG 10.5.3
Please see the following document for details: http://www.symantec.com/docs/TECH225622

"Failed to load DH parameters" errors that may display in the maillog can be safely ignored
For further information please see the following document: http://www.symantec.com/docs/TECH225834

Subaddressing has changed to only use a '+' (plus) sign as the subaddress delimiter
This change was incorrectly cited to use a '-' (minus) sign in the Release Notes and associated KB.
The KB has been corrected: http://www.symantec.com/docs/TECH163815

Symantec registration, rules, and software update servers are dropping support for the Secure Sockets Layer version 3 (SSLv3) protocol.
This change does not affect SMG 10.5.3. For more information please see the following document: http://www.symantec.com/docs/AL1623