I'd think the IP check option is very important. :p

Looks like a proxy server (or something) was introduced on my server recently so all users appear to come from the same IP address and the plugin thinks they are spammers. working w/ webhost to resolve. cheers

Two things to check:

1. Google speed?

2. Cloud VPS?

the web host thinks it is caused by varnish which does reverse proxy, looks like installing mod_rpaf should solve the issue.

thanks for suggesting google speed - i played around with that recently as well so that is a possible culprit..

I downloaded Spam-O-Matic, but found the install instructions to be a little bit confusing. It says upload "content" of the upload folder. I was told to actually upload the upload folder itself. Does this matter? Would like to see a little more specific locations. Where do you upload the product-glowhostspamomatic.xml? Our forum is in the /forum/ folder.

Our admincp folder was renamed. Does glowhostspamomatic.php get uploaded in it's admincp folder or in our renamed admincp folder? Thanks

Do the files go in these folders?

/forum/product-glowhostspamomatic.xml
/forum/includes/functions_ghsom.php
/forum/includes/xml/cpnav_glowhostspamomatic.xml
/forum/<renamed admincp>glowhostspamomatic.php

or these?

/forum/product-glowhostspamomatic.xml
/forum/upload/includes/functions_ghsom.php
/forum/upload/includes/xml/cpnav_glowhostspamomatic.xml
/forum/upload/admincp/glowhostspamomatic.php

In general for all product add-ons for vBulletin:

1) product-xxxxxxx.xml are always imported (this is usually shown as a single file outside the upload directory)
2) All files within the "upload" directory are uploaded as if upload = your forum directory.

does this work in vB5?

sorry does not yet.

Upload content of the upload folder into you forum root folder that mean admincp and includes.. after you upload both those folder rest should be easy

Thanks, bzcomputers. This was very clear.