SMSMSE not blocking lots of spam

Hi,

Although SMSMSE usually is pretty good we have over the last few months ahd an increasing amount of spam coming through. SOme users are receiving 20 - 40 spam messages a day.

I read somewhere this can be related to bm_ruleset folders, I read that you should only have a few of these folders in your symantec\SMSMSE\6.5\server folder.

When I went to check that particular folder... I found the following

• 26 x bm_ruleset.2.fastpass.xxxxxxx ranging from 21/12/2010 - 20/02/2014
• 26 x bm_ruleset.2.intsig_rules.xxxxxxx same range
• 28 x bm_ruleset.2.permit_rules.xxxxxxxx same range
• 29 x bm_ruleset.2.regexfilter_rules.xxxxxxxx same range
• 27 x bm_ruleset.2.spamhunter_rules.xxxxxxxx same range
• 28 x bm_ruleset.2.spamsig_rules.xxxxxxxxx same range

Only the last 3 of each of these folders relates to 2014!!

Should I delete almost all apart from the last few? Am I barking up the right tree?

Thanks

Antony