Hi,
> I installed Sun java system messaging server 2005Q4
> on Solaris 10. It is running exactly. I use Symantec
> Mail Security for SMTP 5.0 for Mail gateway.
> How can I install & configure it?
How can you install and configure =symantec= mail gateway? I suggest you ask this question on the symantec forums. How it is configured will depend on whether you want symantec to receive the email first then pass it off to messaging server or whether you want messaging server to receive the email, pass the email off to symantec and then get it back from symantec. For the latter have a look at the messaging server admin guide (aliasdetourhost).
Regards,
Shane.