Hello,
I agree with Mick.. What happens when you try running the Liveupdate from SEPM and Liveupdate (luall.exe) from the RUN window ? Does it return any errors?
Secondly, Are you talking about Clearswift MIMEsweeper for SMTP product ?
MIMEsweeper for Web analyzes web content and blocks pages or files that are prohibited by your security policy but are not yet listed on any URL Filter.
If yes, make sure you have to allow these websites...
- Liveupdate.symantecliveupdate.com
- Liveupdate.symantec.com
- Symantec.com
Check these Articles:
How to determine whether your firewall is blocking LiveUpdate
http://www.symantec.com/docs/TECH102059
Symantec Endpoint Protection: LiveUpdate
http://www.symantec.com/docs/TECH95790
Hope that helps!!