Due to well-known security flaws in version 2 of the Secure Sockets Layer (SSLv2) protocol, as of September 9, 2014 the Symantec domains that provide registration, rules download, and software update services for products that incorporate the Brightmail based technology will no longer communicate using the SSLv2 protocol. Client applications that cannot use protocol levels higher than SSLv2 will have their connection requests refused and the connection will be terminated. Symantec is implementing this change in order to help ensure the safety of our customers and the integrity of the data transmitted from our servers.
This change will have NO IMPACT for customers who are running currently supported product releases. There is a potential impact to customers who are continuing to run products that are currently in End Of Support Life status.
Symantec Brightmail Anti-Spam (SBAS) Symantec Brightmail Message Filter (SBMF) versions 6.1 and earlier. Symantec Brightmail Gateway 7.6 and earlier.
As noted above, all potentially affected releases are currently in End of Support Life status. Customers still running any of these releases are encouraged to upgrade to a supported version of the product as soon as possible.